KeyCorp (KEY) 10-Q 1 Nov 22 2022 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2022	Oct. 28, 2022
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	001-11302
Entity Registrant Name	KeyCorp
Entity Incorporation, State or Country Code	OH
Entity Tax Identification Number	34-6542451
Entity Address, Address Line One	127 Public Square,
Entity Address, City or Town	Cleveland,
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44114-1306
City Area Code	216
Local Phone Number	689-3000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		932,969,593
Entity Central Index Key	0000091576
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Amendment Flag	false
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Shares, $1 par value
Trading Symbol	KEY
Security Exchange Name	NYSE
Series E Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Perpetual Non-Cumulative Preferred Stock, Series E)
Trading Symbol	KEY PrI
Security Exchange Name	NYSE
Series F Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Cumulative Preferred Stock, Series F)
Trading Symbol	KEY PrJ
Security Exchange Name	NYSE
Series G Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Cumulative Preferred Stock, Series G)
Trading Symbol	KEY PrK
Security Exchange Name	NYSE
Series H Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Cumulative Preferred Stock, Series H)
Trading Symbol	KEY PrL
Security Exchange Name	NYSE

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions		Sep. 30, 2022	Dec. 31, 2021
ASSETS
Cash and due from banks		$ 717	$ 913
Short-term investments		4,896	11,010
Trading account assets		1,068	701
Securities available for sale		40,000	45,364
Held-to-maturity securities (fair value: $7,596 and $7,665)		8,163	7,539
Other investments		1,272	639
Loans, net of unearned income of $326 and $373		116,191	101,854
Less: Allowance for loan and lease losses		(1,144)	(1,061)
Net loans		115,047	100,793
Loans held for sale	[1]	1,048	2,729
Premises and equipment		629	681
Goodwill		2,752	2,693
Other intangible assets		106	130
Corporate-owned life insurance		4,351	4,327
Accrued income and other assets		9,535	8,265
Discontinued assets		467	562
Total assets		190,051	186,346
Deposits in domestic offices:
NOW and money market deposit accounts		84,168	89,207
Savings deposits		7,860	7,503
Certificates of deposit ($100,000 or more)		1,269	1,705
Other time deposits		4,578	2,153
Total interest-bearing deposits		97,875	100,568
Noninterest-bearing deposits		46,980	52,004
Total deposits		144,855	152,572
Federal funds purchased and securities sold under repurchase agreements		4,224	173
Bank notes and other short-term borrowings		4,576	588
Accrued expense and other liabilities		4,849	3,548
Long-term debt		18,257	12,042
Total liabilities		176,761	168,923
EQUITY
Preferred stock		2,500	1,900
Common Shares, $1 par value; authorized 2,100,000,000 shares; issued 1,256,702,081 shares		1,257	1,257
Capital surplus		6,257	6,278
Retained earnings		15,450	14,553
Treasury stock, at cost (323,763,632 and 327,852,311 shares)		(5,917)	(5,979)
Accumulated other comprehensive income (loss)		(6,257)	(586)
Total equity		13,290	17,423
Total liabilities and equity		$ 190,051	$ 186,346
[1]Total loans held for sale include real estate — residential mortgage loans held for sale at fair value of $61 million at September 30, 2022, and $281 million at December 31, 2021.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Fair Value	$ 7,596,000,000	$ 7,665,000,000
Financing receivable, unearned income	326,000,000	373,000,000
Aggregate amount of certificates of deposit	$ 100,000	$ 100,000
Common shares, par value (in usd per share)	$ 1	$ 1
Common shares, shares authorized (in shares)	2,100,000,000	2,100,000,000
Common shares, shares issued (in shares)	1,256,702,081	1,256,702,081
Treasury stock, shares (in shares)	323,763,632	327,852,311
Residential Mortgage
Loans held for sale	$ 61,000,000	$ 281,000,000

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
INTEREST INCOME
Loans		$ 1,134	$ 882	$ 2,894	$ 2,659
Loans held for sale		14	13	36	35
Securities available for sale		196	135	557	398
Held-to-maturity securities		55	43	149	133
Trading account assets		8	4	21	14
Short-term investments		32	9	49	20
Other investments		5	1	11	5
Total interest income		1,444	1,087	3,717	3,264
INTEREST EXPENSE
Deposits		59	15	93	52
Federal funds purchased and securities sold under repurchase agreements		19	0	25	0
Bank notes and other short-term borrowings		24	2	36	6
Long-term debt		146	54	256	168
Total interest expense		248	71	410	226
NET INTEREST INCOME		1,196	1,016	3,307	3,038
Provision for credit losses		109	(107)	237	(422)
Net interest income after provision for credit losses		1,087	1,123	3,070	3,460
NONINTEREST INCOME
Trust and investment services income		127	129	400	395
Investment banking and debt placement fees		154	235	466	614
Service charges on deposit accounts		92	91	279	247
Operating lease income and other leasing gains		19	37	79	111
Corporate services income		96	74	283	212
Cards and payments income		91	111	256	329
Corporate-owned life insurance income		33	33	99	94
Consumer mortgage income		14	33	49	106
Commercial mortgage servicing fees		44	34	125	112
Other income	[1]	13	20	11	65
Total noninterest income		683	797	2,047	2,285
NONINTEREST EXPENSE
Personnel		655	640	1,892	1,887
Net occupancy		72	74	223	225
Computer processing		77	67	232	211
Business services and professional fees		47	56	152	157
Equipment		23	25	72	75
Operating lease expense		24	30	79	95
Marketing		30	32	92	89
Other expense		178	188	512	520
Total noninterest expense		1,106	1,112	3,254	3,259
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES		664	808	1,863	2,486
Income taxes		124	165	346	501
INCOME (LOSS) FROM CONTINUING OPERATIONS		540	643	1,517	1,985
Income (loss) from discontinued operations		2	2	6	11
NET INCOME (LOSS)		542	645	1,523	1,996
Less: Net income (loss) attributable to noncontrolling interests		0	0	0	0
NET INCOME (LOSS) ATTRIBUTABLE TO KEY		542	645	1,523	1,996
Income (loss) from continuing operations attributable to Key common shareholders		513	616	1,437	1,905
Net income (loss) attributable to Key common shareholders		$ 515	$ 618	$ 1,443	$ 1,916
Per Common Share:
Income (loss) from continuing operations attributable to Key common shareholders (in usd per share)		$ 0.55	$ 0.65	$ 1.55	$ 1.99
Income (loss) from discontinued operations, net of taxes (in usd per share)		0	0	0.01	0.01
Net income (loss) attributable to Key common shareholders (in usd per share)	[2]	0.55	0.66	1.56	2
Per Common Share — assuming dilution:
Income (loss) from continuing operations attributable to Key common shareholders (in usd per share)		0.55	0.65	1.54	1.98
Income (loss) from discontinued operations, net of taxes (in usd per share)		0	0	0.01	0.01
Net income (loss) attributable to Key common shareholders (in usd per share)	[2]	$ 0.55	$ 0.65	$ 1.55	$ 1.99
Weighted-average common shares outstanding (in shares)		924,594	942,446	924,085	955,069
Effect of common share options and other stock awards (in shares)		7,861	10,077	8,679	9,712
Weighted-average Common Shares and potential Common Shares outstanding (in shares)	[3]	932,455	952,523	932,764	964,781
[1]For the three and nine months ended September 30, 2022, we had a $9 million gain in net securities. For the three months ended September 30, 2021, we had a $9 million gain in net securities. For the three and nine months ended September 30, 2022, and September 30, 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.

Consolidated Statements of In_2

Consolidated Statements of Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Net securities gains (losses)	$ (9)	$ (9)	$ (9)	$ 0

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 542	$ 645	$ 1,523	$ 1,996
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities available for sale, net of income taxes of $510, $56, $1,381, and $195	(1,616)	(174)	(4,380)	(617)
Net unrealized gains (losses) on derivative financial instruments, net of income taxes of $150, $9, $409, and $57	(477)	(29)	(1,298)	(180)
Net pension and postretirement benefit costs, net of income taxes of $0, $(3), $(2), and $(5)	2	8	7	14
Total other comprehensive income (loss), net of tax	(2,091)	(195)	(5,671)	(783)
Comprehensive income (loss)	(1,549)	450	(4,148)	1,213
Less: Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to Key	$ (1,549)	$ 450	$ (4,148)	$ 1,213

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net unrealized gains (losses) on securities available for sale, tax	$ 510	$ 56	$ 1,381	$ 195
Net unrealized gains (losses) on derivative financial instruments, tax	150	9	409	57
Net pension and postretirement benefit costs, tax	$ 0	$ (3)	$ (2)	$ (5)

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Series D Preferred Stock	Series E Preferred Stock	Series F Preferred Stock	Series G Preferred Stock	Preferred Stock	Common Stock	Capital Surplus	Retained Earnings	Retained Earnings Series D Preferred Stock	Retained Earnings Series E Preferred Stock	Retained Earnings Series F Preferred Stock	Retained Earnings Series G Preferred Stock	Treasury Stock, at Cost	Accumulated Other Comprehensive Income (Loss)
Beginning Balance, Preferred Shares (in shares) at Dec. 31, 2020						1,396,000
Beginning Balance, Common Shares (in shares) at Dec. 31, 2020							975,773,000
Beginning balance at Dec. 31, 2020	$ 17,981					$ 1,900	$ 1,257	$ 6,281	$ 12,751					$ (4,946)	$ 738
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,996								1,996
Other comprehensive income (loss)	(783)														(783)
Deferred compensation	5							5
Cash dividends declared on common shares	(534)								(534)
Cash dividends declared on preferred stock		$ (20)	$ (23)	$ (18)	$ (19)					$ (20)	$ (23)	$ (18)	$ (19)
Open market Common Share repurchases (in shares)							(27,346,000)
Open market Common Share repurchases	(559)													(559)
Employee equity compensation program Common Share repurchases (in shares)							(1,604,000)
Employee equity compensation program Common Share repurchases	(32)													(32)
Common shares reissued (returned) for stock options and other employee benefit plans (in shares)							7,274,000
Common shares reissued (returned) for stock options and other employee benefit plans	101							(28)						129
Common share repurchases under ASR program (in shares)							(23,553,000)
Common share repurchases under ASR program	(585)							(117)						(468)
Ending Balance, Preferred Shares (in shares) at Sep. 30, 2021						1,396,000
Ending Balance, Common Shares (in shares) at Sep. 30, 2021							930,544,000
Ending balance at Sep. 30, 2021	17,510					$ 1,900	$ 1,257	6,141	14,133					(5,876)	(45)
Beginning Balance, Preferred Shares (in shares) at Jun. 30, 2021						1,396,000
Beginning Balance, Common Shares (in shares) at Jun. 30, 2021							960,276,000
Beginning balance at Jun. 30, 2021	17,941					$ 1,900	$ 1,257	6,232	13,689					(5,287)	150
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	645								645
Other comprehensive income (loss)	(195)														(195)
Deferred compensation	5							5
Cash dividends declared on common shares	(176)								(176)
Cash dividends declared on preferred stock		(6)	(7)	(7)	(5)					(6)	(7)	(7)	(5)
Open market Common Share repurchases (in shares)							(6,367,000)
Open market Common Share repurchases	(125)													(125)
Employee equity compensation program Common Share repurchases (in shares)							(3,000)
Employee equity compensation program Common Share repurchases	0													0
Common shares reissued (returned) for stock options and other employee benefit plans (in shares)							191,000
Common shares reissued (returned) for stock options and other employee benefit plans	25							21						4
Common share repurchases under ASR program (in shares)							(23,553,000)
Common share repurchases under ASR program	(585)							(117)						(468)
Ending Balance, Preferred Shares (in shares) at Sep. 30, 2021						1,396,000
Ending Balance, Common Shares (in shares) at Sep. 30, 2021							930,544,000
Ending balance at Sep. 30, 2021	17,510					$ 1,900	$ 1,257	6,141	14,133					(5,876)	(45)
Beginning Balance, Preferred Shares (in shares) at Dec. 31, 2021						1,396,000
Beginning Balance, Common Shares (in shares) at Dec. 31, 2021							928,850,000
Beginning balance at Dec. 31, 2021	17,423					$ 1,900	$ 1,257	6,278	14,553					(5,979)	(586)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,523								1,523
Other comprehensive income (loss)	(5,671)														(5,671)
Deferred compensation	(6)							(6)
Cash dividends declared on common shares	(546)								(546)
Cash dividends declared on preferred stock		$ (19)	$ (24)	$ (18)	$ (19)					(19)	(24)	(18)	(19)
Employee equity compensation program Common Share repurchases (in shares)							(1,734,000)
Employee equity compensation program Common Share repurchases	(44)													(44)
Common shares reissued (returned) for stock options and other employee benefit plans (in shares)							5,822,000
Common shares reissued (returned) for stock options and other employee benefit plans	101							(5)						106
Issuance of Series H preferred stock (in shares)						600,000
Issuance of Series H preferred stock	590					$ 600		(10)
Ending Balance, Preferred Shares (in shares) at Sep. 30, 2022		21,000	500,000	425,000	450,000	1,996,000
Ending Balance, Common Shares (in shares) at Sep. 30, 2022							932,938,000
Ending balance at Sep. 30, 2022	13,290					$ 2,500	$ 1,257	6,257	15,450					(5,917)	(6,257)
Beginning Balance, Preferred Shares (in shares) at Jun. 30, 2022						1,396,000
Beginning Balance, Common Shares (in shares) at Jun. 30, 2022							932,643,000
Beginning balance at Jun. 30, 2022	14,427					$ 1,900	$ 1,257	6,241	15,118					(5,923)	(4,166)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	542								542
Other comprehensive income (loss)	(2,091)														(2,091)
Deferred compensation	0
Cash dividends declared on common shares	(182)								(182)
Cash dividends declared on preferred stock		$ (7)	$ (8)	$ (6)	$ (7)					$ (7)	$ (8)	$ (6)	$ (7)
Employee equity compensation program Common Share repurchases (in shares)							(3,000)
Employee equity compensation program Common Share repurchases	0
Common shares reissued (returned) for stock options and other employee benefit plans (in shares)							298,000
Common shares reissued (returned) for stock options and other employee benefit plans	32							26						6
Issuance of Series H preferred stock (in shares)						600,000
Issuance of Series H preferred stock	590					$ 600		(10)
Ending Balance, Preferred Shares (in shares) at Sep. 30, 2022		21,000	500,000	425,000	450,000	1,996,000
Ending Balance, Common Shares (in shares) at Sep. 30, 2022							932,938,000
Ending balance at Sep. 30, 2022	$ 13,290					$ 2,500	$ 1,257	$ 6,257	$ 15,450					$ (5,917)	$ (6,257)

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Cash dividends declared on Common Shares (in usd per share)	$ 0.195	$ 0.185	$ 0.585	$ 0.555
Series D Preferred Stock
Cash dividends declared on Preferred Stock (in usd per share)	12.50	12.50	37.50	37.50
Series E Preferred Stock
Cash dividends declared on Preferred Stock (in usd per share)	0.382813	0.382813	1.148400	1.148439
Series F Preferred Stock
Cash dividends declared on Preferred Stock (in usd per share)	0.353125	0.353125	1.059400	1.059375
Series G Preferred Stock
Cash dividends declared on Preferred Stock (in usd per share)	$ 0.351563	$ 0.35156	$ 1.054700	$ 1.054689

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
OPERATING ACTIVITIES
Net income (loss)	$ 1,523	$ 1,996
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Provision for credit losses	237	(422)
Depreciation and amortization expense, net	100	80
Accretion of acquired loans	22	19
Increase in cash surrender value of corporate-owned life insurance	(83)	(82)
Stock-based compensation expense	89	78
Deferred income taxes (benefit)	38	126
Proceeds from sales of loans held for sale	9,337	11,282
Originations of loans held for sale, net of repayments	(7,597)	(10,818)
Net losses (gains) on sales of loans held for sale	(116)	(192)
Net losses (gains) on leased equipment	6	(9)
Net securities losses (gains)	9	0
Net losses (gains) on sales of fixed assets	(5)	13
Net decrease (increase) in trading account assets	(367)	(167)
Net transfers of loans held for sale	0	26
Other operating activities, net	(309)	(767)
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	2,884	1,163
INVESTING ACTIVITIES
Purchases of intangibles assets via acquisitions	(12)	0
Cash received (used) in acquisitions, net of cash acquired	(58)	(9)
Net decrease (increase) in short-term investments, excluding acquisitions	6,114	(3,414)
Purchases of securities available for sale	(4,429)	(19,726)
Proceeds from sales of securities available for sale	0	0
Proceeds from prepayments and maturities of securities available for sale	3,774	5,824
Proceeds from prepayments and maturities of held-to-maturity securities	1,891	2,004
Purchases of held-to-maturity securities	(2,727)	(3)
Purchases of other investments	(620)	(26)
Proceeds from sales of other investments	13	36
Proceeds from prepayments and maturities of other investments	9	8
Net decrease (increase) in loans, excluding acquisitions, sales and transfers	(14,443)	(1,031)
Proceeds from sales of portfolio loans	125	243
Proceeds from corporate-owned life insurance	60	56
Purchases of premises, equipment, and software	(61)	(31)
Proceeds from sales of premises and equipment	13	0
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(10,351)	(16,069)
FINANCING ACTIVITIES
Net increase (decrease) in deposits	(7,717)	16,649
Net increase (decrease) in short-term borrowings	8,039	16
Net proceeds from issuance of long-term debt	15,601	1,203
Payments on long-term debt	(8,577)	(1,521)
Issuance of preferred shares	590	0
Open market common share repurchases	0	(559)
Employee equity compensation program Common Share repurchases	(44)	(32)
Common share purchases under ASR program	0	(585)
Net proceeds from reissuance of Common Shares	5	21
Cash dividends paid	(626)	(614)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	7,271	14,578
NET INCREASE (DECREASE) IN CASH AND DUE FROM BANKS	(196)	(328)
CASH AND DUE FROM BANKS AT BEGINNING OF PERIOD	913	1,091
CASH AND DUE FROM BANKS AT END OF PERIOD	717	763
Additional disclosures relative to cash flows:
Interest paid	277	254
Income taxes paid (refunded)	160	212
Noncash items:
Reduction of secured borrowing and related collateral	7	7
Loans transferred to portfolio from held for sale	57	86
Loans transferred to held for sale from portfolio	0	3,403
Loans transferred to OREO	5	3
CMBS risk retentions	12	0
ABS risk retentions	9	13
Securities received as consideration	$ 0	$ 2,825

Basis of Presentation and Accou

Basis of Presentation and Accounting Policies	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Accounting Policies	1. Basis of Presentation and Accounting Policies The consolidated financial statements include the accounts of KeyCorp and its subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. Some previously reported amounts related to derivative valuations and reserves have been reclassified from Other Income to Corporate Services Income to conform to current reporting practices. The consolidated financial statements include any voting rights entities in which we have a controlling financial interest. In accordance with the applicable accounting guidance for consolidations, we consolidate a VIE if we have: (i) a variable interest in the entity; (ii) the power to direct activities of the VIE that most significantly affect the entity’s economic performance; and (iii) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE (i.e., we are considered to be the primary beneficiary). Variable interests can include equity interests, subordinated debt, derivative contracts, leases, service agreements, guarantees, standby letters of credit, loan commitments, and other contracts, agreements, and financial instruments. See Note 11 (“Variable Interest Entities”) for information on our involvement with VIEs. We use the equity method to account for unconsolidated investments in voting rights entities or VIEs if we have significant influence over the entity’s operating and financing decisions (usually defined as a voting or economic interest of 20% to 50%, but not controlling). Unconsolidated investments in voting rights entities or VIEs in which we have a voting or economic interest of less than 20% are carried at the cost measurement alternative or at fair value. Investments held by our registered broker-dealer and investment company subsidiaries (principal investing entities and Real Estate Capital line of business) are carried at fair value. The unaudited consolidated interim financial statements reflect all adjustments of a normal recurring nature and disclosures that are necessary for a fair presentation of the results for the interim periods presented. The results of operations for the interim period are not necessarily indicative of the results of operations to be expected for the full year. The interim financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in our 2021 Form 10-K. In preparing these financial statements, subsequent events were evaluated through the time the financial statements were issued. Financial statements are considered issued when they are widely distributed to all shareholders and other financial statement users or filed with the SEC. Accounting Guidance Adopted in 2022 Standard Date of Adoption Description Effect on Financial Statements or Reference Rate Reform (Topic 848) March 12, 2020 through December 31, 2022 London Interbank Offered Rate (LIBOR), a reference rate presumed to capture bank funding costs, is being phased out and will no longer be published. This transition to alternate rates will impact, among other things, contracts that reference LIBOR. This ASU provides relief from cumbersome accounting consequences for certain qualifying contract modifications undertaken as a result of reference rate reform. Key has established an enterprise-wide program to identify and address all LIBOR related matters. We have elected to apply certain optional expedients for contract modifications and hedging relationships to derivative instruments impacted by the market-wide discounting transition. These optional expedients remove the requirement to remeasure contract modifications or dedesignate hedging relationships due to reference rate reform. We plan to elect any optional expedients for contract modifications and hedging relationships to any other financial instruments falling under the scope of reference rate reform. ASU 2020-06, Debt—Debt January 1, 2022 The ASU simplifies the accounting for convertible debt instruments by eliminating the legacy accounting models for convertible The guidance should be applied on a modified retrospective or retrospective basis. The adoption of this accounting guidance did not have a material effect on our financial condition or results of operations.

Earnings Per Common Share

Earnings Per Common Share	9 Months Ended
	Sep. 30, 2022
Earnings Per Share [Abstract]
Earnings Per Common Share	2. Earnings Per Common Share Basic earnings per share is the amount of earnings (adjusted for dividends declared on our preferred stock) available to each Common Share outstanding during the reporting periods. Diluted earnings per share is the amount of earnings available to each Common Share outstanding during the reporting periods adjusted to include the effects of potentially dilutive Common Shares. Potentially dilutive Common Shares include stock options and other stock-based awards. Potentially dilutive Common Shares are excluded from the computation of diluted earnings per share in the periods where the effect would be antidilutive. Our basic and diluted earnings per Common Share are calculated as follows: Three months ended September 30, Nine months ended September 30, Dollars in millions, except per share amounts 2022 2021 2022 2021 EARNINGS Income (loss) from continuing operations $ 540 $ 643 $ 1,517 $ 1,985 Less: Net income (loss) attributable to noncontrolling interests — — — — Income (loss) from continuing operations attributable to Key 540 643 1,517 1,985 Less: Dividends on Preferred Stock 27 27 80 80 Income (loss) from continuing operations attributable to Key common shareholders 513 616 1,437 1,905 Income (loss) from discontinued operations, net of taxes 2 2 6 11 Net income (loss) attributable to Key common shareholders $ 515 $ 618 $ 1,443 $ 1,916 WEIGHTED-AVERAGE COMMON SHARES Weighted-average Common Shares outstanding (000) 924,594 942,446 924,085 955,069 Effect of Common Share options and other stock awards 7,861 10,077 8,679 9,712 Weighted-average Common Shares and potential Common Shares outstanding (000) (a) 932,455 952,523 932,764 964,781 EARNINGS PER COMMON SHARE Income (loss) from continuing operations attributable to Key common shareholders $ .55 $ .65 $ 1.55 $ 1.99 Income (loss) from discontinued operations, net of taxes — — .01 .01 Net income (loss) attributable to Key common shareholders (b) .55 .66 1.56 2.00 Income (loss) from continuing operations attributable to Key common shareholders — assuming dilution $ .55 $ .65 $ 1.54 $ 1.98 Income (loss) from discontinued operations, net of taxes — assuming dilution — — .01 .01 Net income (loss) attributable to Key common shareholders — assuming dilution (b) .55 .65 1.55 1.99 (a) Assumes conversion of Common Share options and other stock awards and/or convertible preferred stock, as applicable. (b) EPS may not foot due to rounding.

Loan Portfolio

Loan Portfolio	9 Months Ended
	Sep. 30, 2022
Loans Receivables [Abstract]
Loan Portfolio	3. Loan Portfolio Loan Portfolio by Portfolio Segment and Financing Receivable (a) Dollars in millions September 30, 2022 December 31, 2021 Commercial and industrial (b) $ 56,971 $ 50,525 Commercial real estate: Commercial mortgage 16,400 14,244 Construction 2,349 1,996 Total commercial real estate loans 18,749 16,240 Commercial lease financing (c) 3,877 4,071 Total commercial loans 79,597 70,836 Residential — prime loans: Real estate — residential mortgage 20,838 15,756 Home equity loans 7,926 8,467 Total residential — prime loans 28,764 24,223 Consumer direct loans 6,803 5,753 Credit cards 977 972 Consumer indirect loans 50 70 Total consumer loans 36,594 31,018 Total loans (d) $ 116,191 $ 101,854 (a) Accrued interest of $274 million and $198 million at September 30, 2022, and December 31, 2021, respectively, presented in "other assets" on the Consolidated Balance Sheets is excluded from the amortized cost basis disclosed in this table. (b) Loan balances include $166 million and $139 million of commercial credit card balances at September 30, 2022, and December 31, 2021, respectively. (c) Commercial lease financing includes receivables held as collateral for a secured borrowing of $10 million and $16 million at September 30, 2022, and December 31, 2021, respectively. Principal reductions are based on the cash payments received from these related receivables. Additional information pertaining to this secured borrowing is included in Note 20 (“Long-Term Debt”) beginning on page 169 of our 2021 Form 10-K.

Asset Quality

Asset Quality	9 Months Ended
	Sep. 30, 2022
Credit Loss [Abstract]
Asset Quality	4. Asset Quality ALLL We estimate the appropriate level of the ALLL on at least a quarterly basis. The methodology is described in Note 1 ("Summary of Significant Accounting Policies") under the heading "Allowance for Loan and Lease Losses" beginning on page 109 of our 2021 Form 10-K. The ALLL at September 30, 2022, represents our current estimate of lifetime credit losses inherent in the loan portfolio at that date. The changes in the ALLL by loan category for the periods indicated are as follows: Three months ended September 30, 2022: Dollars in millions June 30, 2022 Provision Charge-offs Recoveries September 30, 2022 Commercial and Industrial $ 503 $ 52 $ (49) $ 13 $ 519 Commercial real estate: Real estate — commercial mortgage 156 13 (3) 2 168 Real estate — construction 21 1 — — 22 Total commercial real estate loans 177 14 (3) 2 190 Commercial lease financing 29 — — 1 30 Total commercial loans 709 66 (52) 16 739 Real estate — residential mortgage 122 15 (1) 1 137 Home equity loans 95 (3) — 1 93 Consumer direct loans 112 4 (8) 4 112 Credit cards 59 7 (7) 2 61 Consumer indirect loans 2 (1) — 1 2 Total consumer loans 390 22 (16) 9 405 Total ALLL — continuing operations 1,099 88 (a) (68) 25 1,144 Discontinued operations 24 (2) (1) 1 22 Total ALLL — including discontinued operations $ 1,123 $ 86 $ (69) $ 26 $ 1,166 (a) Excludes a provision for losses on lending-related commitments of $21 million. Three months ended September 30, 2021: Dollars in millions June 30, 2021 Provision Charge-offs Recoveries September 30, 2021 Commercial and Industrial $ 499 $ (30) $ (27) $ 20 $ 462 Commercial real estate: Real estate — commercial mortgage 227 (44) — 1 184 Real estate — construction 35 (8) — — 27 Total commercial real estate loans 262 (52) — 1 211 Commercial lease financing 34 (7) (1) 6 32 Total commercial loans 795 (89) (28) 27 705 Real estate — residential mortgage 86 (1) 2 1 88 Home equity loans 136 (13) (1) 2 124 Consumer direct loans 115 (5) (7) 2 105 Credit cards 68 (4) (6) 1 59 Consumer indirect loans 20 5 (26) 4 3 Total consumer loans 425 (18) (38) 10 379 Total ALLL — continuing operations 1,220 (107) (a) (66) 37 1,084 Discontinued operations 30 (1) (1) 1 29 Total ALLL — including discontinued operations $ 1,250 $ (108) $ (67) $ 38 $ 1,113 (a) We had no losses on lending-related commitments. Nine months ended September 30, 2022: Dollars in millions December 31, 2021 Provision Charge-offs Recoveries September 30, 2022 Commercial and Industrial $ 445 $ 160 $ (118) $ 32 $ 519 Commercial real estate: Real estate — commercial mortgage 182 (8) (10) 4 168 Real estate — construction 29 (8) — 1 22 Total commercial real estate loans 211 (16) (10) 5 190 Commercial lease financing 32 (2) (2) 2 30 Total commercial loans 688 142 (130) 39 739 Real estate — residential mortgage 95 38 2 2 137 Home equity loans 110 (19) (1) 3 93 Consumer direct loans 105 25 (25) 7 112 Credit cards 61 17 (22) 5 61 Consumer indirect loans 2 — (2) 2 2 Total consumer loans 373 61 (48) 19 405 Total ALLL — continuing operations 1,061 203 (a) (178) 58 1,144 Discontinued operations 28 (4) (4) 2 22 Total ALLL — including discontinued operations $ 1,089 $ 199 $ (182) $ 60 $ 1,166 (a) Excludes a provision for losses on lending-related commitments of $34 million. Nine months ended September 30, 2021: Dollars in millions December 31, 2020 Provision Charge-offs Recoveries September 30, 2021 Commercial and Industrial $ 678 $ (135) $ (141) $ 60 $ 462 Commercial real estate: Real estate — commercial mortgage 327 (112) (39) 8 184 Real estate — construction 47 (20) — — 27 Total commercial real estate loans 374 (132) (39) 8 211 Commercial lease financing 47 (17) (5) 7 32 Total commercial loans 1,099 (284) (185) 75 705 Real estate — residential mortgage 102 (17) 1 2 88 Home equity loans 171 (44) (7) 4 124 Consumer direct loans 128 (7) (22) 6 105 Credit cards 87 (13) (21) 6 59 Consumer indirect loans 39 (12) (38) 14 3 Total consumer loans 527 (93) (87) 32 379 Total ALLL — continuing operations 1,626 (377) (a) (272) 107 1,084 Discontinued operations 36 (6) (3) 2 29 Total ALLL — including discontinued operations $ 1,662 $ (383) $ (275) $ 109 $ 1,113 (a) Excludes a provision for losses on lending-related commitments of $45 million. As described in Note 1 ("Summary of Significant Accounting Policies"), under the heading “Allowance for Loan and Lease Losses” beginning on page 109 of our 2021 Form 10-K, we estimate the ALLL using relevant available information, from internal and external sources, relating to past events, current economic and portfolio conditions, and reasonable and supportable forecasts. In our estimation of expected credit losses, we use a two year reasonable and supportable period across all products. Following this two year period in which supportable forecasts can be generated, for all modeled loan portfolios, we revert expected credit losses to a level that is consistent with our historical information by reverting the macroeconomic variables (model inputs) to their long run average. We revert to historical loss rates for less complex estimation methods for smaller portfolios. A 20 year fixed length look back period is used to calculate the long run average of the macroeconomic variables. A four quarter reversion period is used where the macroeconomic variables linearly revert to their long run average following the two year reasonable and supportable period. We develop our reasonable and supportable forecasts using relevant data including, but not limited to, changes in economic output, unemployment rates, property values, and other factors associated with the credit losses on financial assets. Some macroeconomic variables apply to all portfolio segments, while others are more portfolio specific. The following table discloses key macroeconomic variables for each loan portfolio. Segment Portfolio Key Macroeconomic Variables (a) Commercial Commercial and industrial BBB corporate bond rate (spread), fixed investment, business bankruptcies, GDP, industrial production, and unemployment rate Commercial real estate Property & real estate price indices, unemployment rate, business bankruptcies, GDP Commercial lease financing BBB corporate bond rate (spread), GDP, and unemployment rate Consumer Real estate — residential mortgage GDP, home price index, unemployment rate, and 30 year mortgage rate Home equity Home price index, unemployment rate, and 30 year mortgage rate Consumer direct Unemployment rate and U.S. household income Consumer indirect New vehicle sales, used vehicle prices, and Unemployment rate Credit cards Unemployment rate and U.S. household income Discontinued operations Unemployment rate (a) Variables include all transformations and interactions with other risk drivers. Additionally, variables may have varying impacts at different points in the economic cycle. In addition to macroeconomic drivers, portfolio attributes such as remaining term, outstanding balance, risk ratings, utilization, FICO, LTV, and delinquency also drive ALLL changes. Our ALLL models were designed to capture the correlation between economic and portfolio changes. As such, evaluating shifts in individual portfolio attributes and macroeconomic variables in isolation may not be indicative of past or future performance. Economic Outlook As of September 30, 2022, risk of slowing economic growth is elevated due to the heightened inflationary pressures and continued stress on global supply chains. While inflation in the United States has persisted at elevated levels, monetary policy has become more restrictive which is expected to reduce inflation into 2023. While unemployment rates are still expected to remain at relatively low levels, job growth is moderating. We utilized the Moody’s August 2022 Consensus forecast as our baseline forecast to estimate our expected credit losses as of September 30, 2022. We determined such forecast to be a reasonable view of the outlook for the economy given all available information at quarter end. The baseline scenario reflects slow economic growth over the next two years in markets in which we operate. U.S. GDP continues to grow, albeit at a slow pace, at a 1.7% annualized rate in the third quarter of 2022 and at an annual rate of approximately 2% and 1% for 2022 and 2023, respectively. The national unemployment rate forecast is 3.5% in the third quarter of 2022, and is expected to increase slightly through the fourth quarter of 2023 due to labor supply constraints. The U.S. Consumer Price Index (CPI) annualized rate is expected to return to below 3% by the first quarter of 2023. As a result of the current economic uncertainty, our future loss estimates may vary considerably from our September 30, 2022, assumptions. Commercial Loan Portfolio The ALLL from continuing operations for the commercial segment increased by $30 million, or 4.2%, from June 30, 2022. The overall increase in the commercial allowance is driven by loan growth and changes in economic outlook. Changes to the economic forecast include increases in unemployment, lower final sales of domestic product and decreased consumer confidence measures, largely related to observed high inflation and increased interest rates. Loan growth particularly within the commercial and industrial portfolio remains strong and contributes to reserve build. These increases are partly offset by reductions in the qualitative reserves due to easing of pandemic-related risks as well as lower reserves attributable to a model recalibration and to individually assessed reserves. Consumer Loan Portfolio The ALLL from continuing operations for the consumer segment increased by $15 million, or 3.8%, from June 30, 2022. The overall increase in the allowance is primarily driven by loan growth and economic forecast changes, partly offset by reductions in qualitative reserves as pandemic-related pressures ease . Current reserve levels reflect the overall declining economic outlook quarter-over-quarter, with the most meaningful economic changes being the slowing home price growth and shifts in the unemployment outlook. As it relates to the changes in the ALLL due to portfolio factors, increases are largely driven by targeted growth in the residential mortgage portfolio. Credit Risk Profile The prevalent risk characteristic for both commercial and consumer loans is the risk of loss arising from an obligor’s inability or failure to meet contractual payment or performance terms. Evaluation of this risk is stratified and monitored by the loan risk rating grades assigned for the commercial loan portfolios and the refreshed FICO score assigned for the consumer loan portfolios. The internal risk grades assigned to loans follow our definitions of Pass and Criticized, which are consistent with published definitions of regulatory risk classifications. Loans with a pass rating represent those loans not classified on our rating scale for credits, as minimal credit risk has been identified. Criticized loans are those loans that either have a potential weakness deserving management's close attention or have a well-defined weakness that may put full collection of contractual cash flows at risk. Borrower FICO scores provide information about the credit quality of our consumer loan portfolio as they provide an indication as to the likelihood that a debtor will repay its debts. The scores are obtained from a nationally recognized consumer rating agency and are presented in the tables below at the dates indicated. All extensions of credit are subject to loan grading or scoring. Loan grades are assigned at the time of origination, verified by credit risk management, and periodically re-evaluated thereafter. This risk rating methodology blends our judgment with quantitative modeling. Commercial loans generally are assigned two internal risk ratings. The first rating reflects the probability that the borrower will default on an obligation; the second rating reflects expected recovery rates on the credit facility. Default probability is determined based on, among other factors, the financial strength of the borrower, an assessment of the borrower’s management, the borrower’s competitive position within its industry sector, and our view of industry risk in the context of the general economic outlook. Types of exposure, transaction structure, and collateral, including credit risk mitigants, affect the expected recovery assessment. Commercial Credit Exposure Credit Risk Profile by Creditworthiness Category and Vintage (a) As of September 30, 2022 Term Loans Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis Amortized Cost Basis by Origination Year and Internal Risk Rating Dollars in millions 2022 2021 2020 2019 2018 Prior Total Commercial and Industrial Risk Rating: Pass $ 7,572 $ 9,757 $ 3,729 $ 3,267 $ 1,862 $ 3,831 $ 24,796 $ 132 $ 54,946 Criticized (Accruing) 11 179 130 114 278 251 865 28 1,856 Criticized (Nonaccruing) 39 2 7 6 8 25 80 2 169 Total commercial and industrial 7,622 9,938 3,866 3,387 2,148 4,107 25,741 162 56,971 Real estate — commercial mortgage Risk Rating: Pass 4,162 4,264 1,014 1,912 827 2,695 927 50 15,851 Criticized (Accruing) — 24 26 85 91 242 46 1 515 Criticized (Nonaccruing) — — 1 2 2 25 4 — 34 Total real estate — commercial mortgage 4,162 4,288 1,041 1,999 920 2,962 977 51 16,400 Real estate — construction Risk Rating: Pass 475 747 516 365 168 49 1 — 2,321 Criticized (Accruing) — — 5 5 14 4 — — 28 Criticized (Nonaccruing) — — — — — — — — — Total real estate — construction 475 747 521 370 182 53 1 — 2,349 Commercial lease financing Risk Rating: Pass 697 869 558 506 199 991 — — 3,820 Criticized (Accruing) 1 1 10 19 13 11 — — 55 Criticized (Nonaccruing) — — — 1 1 — — — 2 Total commercial lease financing 698 870 568 526 213 1,002 — 3,877 Total commercial loans $ 12,957 $ 15,843 $ 5,996 $ 6,282 $ 3,463 $ 8,124 $ 26,719 $ 213 $ 79,597 As of December 31, 2021 Term Loans Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis Amortized Cost Basis by Origination Year and Internal Risk Rating Dollars in millions 2021 2020 2019 2018 2017 Prior Total Commercial and Industrial Risk Rating: Pass $ 11,675 $ 4,941 $ 4,040 $ 2,771 $ 1,777 $ 3,108 $ 20,406 $ 72 $ 48,790 Criticized (Accruing) 64 71 115 175 200 121 784 14 1,544 Criticized (Nonaccruing) 1 1 21 10 19 15 122 2 191 Total commercial and industrial 11,740 5,013 4,176 2,956 1,996 3,244 21,312 88 50,525 Real estate — commercial mortgage Risk Rating: Pass 4,923 1,197 2,137 1,168 612 2,787 803 53 13,680 Criticized (Accruing) 15 22 70 62 109 206 35 1 520 Criticized (Nonaccruing) — 1 1 5 — 31 6 — 44 Total real estate — commercial mortgage 4,938 1,220 2,208 1,235 721 3,024 844 54 14,244 Real estate — construction Risk Rating: Pass 495 565 530 223 92 32 2 — 1,939 Criticized (Accruing) — 4 5 43 4 — 1 — 57 Criticized (Nonaccruing) — — — — — — — — — Total real estate — construction 495 569 535 266 96 32 3 — 1,996 Commercial lease financing Risk Rating: Pass 1,039 748 675 301 309 927 — — 3,999 Criticized (Accruing) — 6 29 13 13 7 — — 68 Criticized (Nonaccruing) — — 1 1 1 1 — — 4 Total commercial lease financing 1,039 754 705 315 323 935 — — 4,071 Total commercial loans $ 18,212 $ 7,556 $ 7,624 $ 4,772 $ 3,136 $ 7,235 $ 22,159 $ 142 $ 70,836 (a) Accrued intere st of $197 million a nd $113 million as of September 30, 2022, and December 31, 2021, respectively, presented in Other Assets on the Consolidated Balance Sheets, was excluded from the amortized cost basis disclosed in these tables. Consumer Credit Exposure Credit Risk Profile by FICO Score and Vintage (a) As of September 30, 2022 Term Loans Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis Amortized Cost Basis by Origination Year and FICO Score Dollars in millions 2022 2021 2020 2019 2018 Prior Total Real estate — residential mortgage FICO Score: 750 and above $ 4,959 $ 8,248 $ 2,624 $ 643 $ 63 $ 1,015 $ — $ — $ 17,552 660 to 749 1,256 979 299 115 32 261 — — 2,942 Less than 660 35 38 18 15 15 139 — — 260 No Score 51 1 1 1 1 28 1 — 84 Total real estate — residential mortgage 6,301 9,266 2,942 774 111 1,443 1 — 20,838 Home equity loans FICO Score: 750 and above 138 879 760 214 76 647 2,303 403 5,420 660 to 749 85 302 204 83 33 196 961 129 1,993 Less than 660 9 31 22 17 10 84 294 38 505 No Score 4 — — — — 2 2 — 8 Total home equity loans 236 1,212 986 314 119 929 3,560 570 7,926 Consumer direct loans FICO Score: 750 and above 1,229 1,876 860 378 50 106 104 — 4,603 660 to 749 474 461 242 129 29 44 204 — 1,583 Less than 660 44 62 31 23 7 10 55 — 232 No Score 59 39 23 18 12 24 210 — 385 Total consumer direct loans 1,806 2,438 1,156 548 98 184 573 — 6,803 Credit cards FICO Score: 750 and above — — — — — — 493 — 493 660 to 749 — — — — — — 391 — 391 Less than 660 — — — — — — 92 — 92 No Score — — — — — — 1 — 1 Total credit cards — — — — — — 977 — 977 Consumer indirect loans FICO Score: 750 and above — 2 — — — 24 — — 26 660 to 749 — — — — — 17 — — 17 Less than 660 — — — — — 7 — — 7 No Score — — — — — — — — — Total consumer indirect loans — 2 — — — 48 — — 50 Total consumer loans $ 8,343 $ 12,918 $ 5,084 $ 1,636 $ 328 $ 2,604 $ 5,111 $ 570 $ 36,594 As of December 31, 2021 Term Loans Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis Amortized Cost Basis by Origination Year and FICO Score Dollars in millions 2021 2020 2019 2018 2017 Prior Total Real estate — residential mortgage FICO Score: 750 and above $ 7,906 $ 2,909 $ 777 $ 84 $ 126 $ 1,096 $ — $ — $ 12,898 660 to 749 1,686 351 169 39 25 308 — — 2,578 Less than 660 26 14 19 16 9 142 — — 226 No Score 18 — 1 1 3 30 1 — 54 Total real estate — residential mortgage 9,636 3,274 966 140 163 1,576 1 — 15,756 Home equity loans FICO Score: 750 and above 1,051 830 251 96 128 666 2,244 423 5,689 660 to 749 394 263 111 44 40 204 1,004 143 2,203 Less than 660 27 24 20 13 13 92 333 46 568 No Score — 2 — — — 2 3 — 7 Total home equity loans 1,472 1,119 382 153 181 964 3,584 612 8,467 Consumer direct loans FICO Score: 750 and above 1,799 1,129 517 65 17 129 109 — 3,765 660 to 749 612 295 174 46 10 45 212 — 1,394 Less than 660 45 33 27 11 3 12 60 — 191 No Score 68 40 29 17 10 21 218 — 403 Total consumer direct loans 2,524 1,497 747 139 40 207 599 — 5,753 Credit cards FICO Score: 750 and above — — — — — — 500 — 500 660 to 749 — — — — — — 387 — 387 Less than 660 — — — — — — 84 — 84 No Score — — — — — — 1 — 1 Total credit cards — — — — — — 972 — 972 Consumer indirect loans FICO Score: 750 and above 5 — — — — 30 — — 35 660 to 749 — — — — — 26 — — 26 Less than 660 — — — — — 9 — — 9 No Score — — — — — — — — — Total consumer indirect loans 5 — — — — 65 — — 70 Total consumer loans $ 13,637 $ 5,890 $ 2,095 $ 432 $ 384 $ 2,812 $ 5,156 $ 612 $ 31,018 (a) Accrued intere st of $77 million and $85 million as of September 30, 2022 and December 31, 2021, respectively, presented in Other Assets on the Consolidated Balance Sheets, was excluded from the amortized cost basis disclosed in this table. Nonperforming and Past Due Loans Our policies for determining past due loans, placing loans on nonaccrual, applying payments on nonaccrual loans, and resuming accrual of interest for our commercial and consumer loan portfolios are disclosed in Note 1 (“Summary of Significant Accounting Policies”) under the heading “Nonperforming Loans” beginning on page 108 of our 2021 Form 10-K. The following aging analysis of past due and current loans as of September 30, 2022, and December 31, 2021, provides further information regarding Key’s credit exposure. Aging Analysis of Loan Portfolio (a) September 30, 2022 Current 30-59 Days Past Due (b) 60-89 Days Past Due (b) 90 and Greater Days Past Due (b) Non-performing Total Past Total Loans (c) Dollars in millions LOAN TYPE Commercial and industrial $ 56,674 $ 75 $ 31 $ 22 $ 169 $ 297 $ 56,971 Commercial real estate: Commercial mortgage 16,353 4 1 8 34 47 16,400 Construction 2,348 — — 1 — 1 2,349 Total commercial real estate loans 18,701 4 1 9 34 48 18,749 Commercial lease financing 3,857 16 1 1 2 20 3,877 Total commercial loans $ 79,232 $ 95 $ 33 $ 32 $ 205 $ 365 $ 79,597 Real estate — residential mortgage $ 20,759 $ 9 $ 3 $ 1 $ 66 $ 79 $ 20,838 Home equity loans 7,787 19 4 4 112 139 7,926 Consumer direct loans 6,779 11 6 4 3 24 6,803 Credit cards 961 4 3 6 3 16 977 Consumer indirect loans 49 — — — 1 1 50 Total consumer loans $ 36,335 $ 43 $ 16 $ 15 $ 185 $ 259 $ 36,594 Total loans $ 115,567 $ 138 $ 49 $ 47 $ 390 $ 624 $ 116,191 (a) Amounts in table represent amortized cost and exclude loans held for sale. (b) Accrued inter est of $274 million p resented in Other Assets on the Consolidated Balance Sheets is excluded from the amortized cost basis disclosed in this table. (c) Net of unearned income, net of deferred fees and costs, and unamortized discounts and premiums. December 31, 2021 Current 30-59 Days Past Due (b) 60-89 Days Past Due (b) 90 and Greater Days Past Due (b) Non-performing Loans Total Past Due and Non-performing Loans Total Loans (c) Dollars in millions LOAN TYPE Commercial and industrial $ 50,226 $ 19 $ 49 $ 40 $ 191 $ 299 $ 50,525 Commercial real estate: Commercial mortgage 14,174 10 9 7 44 70 14,244 Construction 1,978 — 17 1 — 18 1,996 Total commercial real estate loans 16,152 10 26 8 44 88 16,240 Commercial lease financing 4,061 6 — — 4 10 4,071 Total commercial loans $ 70,439 $ 35 $ 75 $ 48 $ 239 $ 397 $ 70,836 Real estate — residential mortgage $ 15,669 $ 7 $ 3 $ 5 $ 72 $ 87 $ 15,756 Home equity loans 8,299 21 6 6 135 168 8,467 Consumer direct loans 5,736 8 2 3 4 17 5,753 Credit cards 956 4 3 6 3 16 972 Consumer indirect loans 68 1 — — 1 2 70 Total consumer loans $ 30,728 $ 41 $ 14 $ 20 $ 215 $ 290 $ 31,018 Total loans $ 101,167 $ 76 $ 89 $ 68 $ 454 $ 687 $ 101,854 (a) Amounts in table represent amortized cost and exclude loans held for sale. (b) Accrued interest of $198 million presented in Other Assets on the Consolidated Balance Sheets is excluded from the amortized cost basis disclosed in this table. (c) Net of unearned income, net of deferred fees and costs, and unamortized discounts and premiums. At September 30, 2022, the approximate carrying amount of our commercial nonperforming loans outstanding represented 60% of their original contractual amount owed, total nonperforming loans outstanding represented 72% of their original contractual amount owed, and nonperforming assets in total were carried at 80% of their original contractual amount owed. Nonperforming loans reduced expected interest income by $4 million and $13 million for the three and nine months ended September 30, 2022, respectively, and $6 million an d $20 million for the three and nine months ended September 30, 2021, respectively. The amortized cost basis of nonperforming loans on nonaccrual status for which there is no related allowance for credit losses was $220 million at September 30, 2022. Collateral-dependent Financial Assets We classify financial assets as collateral-dependent when our borrower is experiencing financial difficulty, and we expect repayment to be provided substantially through the operation or sale of the collateral. Our commercial loans have collateral that includes cash, accounts receivable, inventory, commercial machinery, commercial properties, commercial real estate construction projects, enterprise value, and stock or ownership interests in the borrowing entity. When appropriate we also consider the enterprise value of the borrower as a repayment source for collateral-dependent loans. Our consumer loans have collateral that includes residential real estate, automobiles, boats, and RVs. There were no significant changes in the extent to which collateral secures our collateral-dependent financial assets during the three months ended September 30, 2022 . TDRs We classify loan modifications as TDRs when a borrower is experiencing financial difficulties and we have granted a concession without commensurate financial, structural, or legal consideration. Our loan modifications are handled on a case-by-case basis and are negotiated to achieve mutually agreeable terms that maximize loan collectability and meet the borrower’s financial needs. Commitments outstanding to lend additional funds to borrowers whose loan terms have been modified in TDRs w ere $10 million a nd $15 million at September 30, 2022, and December 31, 2021, respectively. The consumer TDR other concession category in the table below primarily includes those borrowers’ debts that are discharged through Chapter 7 bankruptcy and have not been formally re-affirmed. At September 30, 2022, and December 31, 2021, the recorded investment of consumer residential mortgage loans in the process of foreclosure was approximately $108 million and $104 million, respectively. The following table shows the post-modification outstanding recorded investment by concession type for our commercial and consumer accruing and nonaccruing TDRs that occurred during the periods indicated: Three Months Ended September 30, Nine Months Ended September 30, Dollars in millions 2022 2021 2022 2021 Commercial loans: Extension of Maturity Date $ 40 $ — $ 40 $ 5 Payment or Covenant Modification/Deferment — — 1 7 Bankruptcy Plan Modification — — — — Increase in new commitment or new money — — — — Total $ 40 $ — $ 41 $ 12 Consumer loans: Interest rate reduction $ 5 $ 3 $ 10 $ 6 Other 4 12 17 18 Total $ 9 $ 15 $ 27 $ 24 Total TDRs $ 49 $ 15 $ 68 $ 36 The following table summarizes the change in the post-modification outstanding recorded investment of our accruing and nonaccruing TDRs during the periods indicated: Three Months Ended September 30, Nine Months Ended September 30, Dollars in millions 2022 2021 2022 2021 Balance at beginning of the period $ 216 $ 334 $ 220 $ 363 Additions 48 17 70 98 Payments (10) (81) (34) (162) Charge-offs — — (2) (29) Balance at end of period $ 254 $ 270 $ 254 $ 270 A further breakdown of TDRs included in nonperforming loans by loan category for the periods indicated are as follows: September 30, 2022 December 31, 2021 Number of Loans Pre-modification Outstanding Recorded Investment Post-modification Outstanding Recorded Investment Number of Loans Pre-modification Outstanding Recorded Investment Post-modification Outstanding Recorded Investment Dollars in millions LOAN TYPE Nonperforming: Commercial and industrial 37 $ 64 $ 52 36 $ 30 $ 14 Commercial real estate: Commercial mortgage 4 50 23 3 50 25 Total commercial real estate loans 4 50 23 3 50 25 Total commercial loans 41 114 75 39 80 39 Real estate — residential mortgage 234 29 26 220 26 24 Home equity loans 478 32 28 531 36 31 Consumer direct loans 180 2 2 207 3 2 Credit cards 343 2 2 360 2 2 Consumer indirect loans 17 2 1 23 1 1 Total consumer loans 1,252 67 59 1,341 68 60 Total nonperforming TDRs 1,293 181 134 1,380 148 99 Prior-year accruing: (a) Commercial and industrial 17 1 — 11 — — Commercial real estate Commercial mortgage — — — 1 — — Total commercial real estate loans — — — 1 — — Total commercial loans 17 1 — 12 — — Real estate — residential mortgage 443 41 35 455 39 33 Home equity loans 1,563 97 74 1,628 97 75 Consumer direct loans 257 4 3 236 5 3 Credit cards 595 4 2 579 4 2 Consumer indirect loans 107 12 6 139 15 8 Total consumer loans 2,965 158 120 3,037 160 121 Total prior-year accruing TDRs 2,982 159 120 3,049 160 121 Total TDRs 4,275 $ 340 $ 254 4,429 $ 308 $ 220 (a) All TDRs that were restructured prior to January 1, 2022, and January 1, 2021, are fully accruing. Commercial loan TDRs are considered defaulted when principal and interest payments are 90 days past due. Consumer loan TDRs are considered defaulted when principal and interest payments are more than 60 days past due. During the three months ended September 30, 2022, there were two commercial loan TDRs and 56 consumer loan TDRs with a combined recorded investment of $1 million that experienced payment defaults after modifications resulting in TDR status during 2021. During the three months ended September 30, 2021, there were two commercial loan TDRs and 33 consumer loan TDRs with a combined recorded investment of $2 million that experienced payment defaults after modifications resulting in TDR status during 2020. During the nine months ended September 30, 2022, there were seven commercial loan TDRs and 146 consumer loan TDRs with a combined recorded investment of $11 million that experienced payment defaults after modifications resulting in TDR status during 2021. During the nine months ended September 30, 2021, there were five commercial loan TDRs and 98 consumer loan TDRs with a combined recorded investment of $4 million that experienced payment defaults after modifications resulting in TDR status during 2020. Liability for Credit Losses on Off Balance Sheet Exposures The liability for credit losses inherent in unfunded lending-related commitments, such as letters of credit and unfunded loan commitments, and certain financial guarantees is included in “accrued expense and other liabilities” on the balance sheet. Changes in the liability for credit losses on off balance sheet exposures are summarized as follows: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Balance at beginning of period $ 173 $ 152 160 197 Provision (credit) for losses on off balance sheet exposures 21 — 34 (45) Balance at end of period $ 194 $ 152 $ 194 $ 152

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	5. Fair Value Measurements In accordance with GAAP, Key measures certain assets and liabilities at fair value. Fair value is defined as the price to sell an asset or transfer a liability in an orderly transaction between market participants in our principal market. Additional information regarding our accounting policies for determining fair value is provided in Note 6 (“Fair Value Measurements”) and Note 1 (“Summary of Significant Accounting Policies”) under the heading “Fair Value Measurements” of our 2021 Form 10-K. Assets and Liabilities Measured at Fair Value on a Recurring Basis Certain assets and liabilities are measured at fair value on a recurring basis in accordance with GAAP. For more information on the valuation techniques used to measure classes of assets and liabilities reported at fair value on a recurring basis as well as the classification of each in the valuation hierarchy, refer to Note 6 (“Fair Value Measurements” in our 2021 Form 10-K. The following tables present these assets and liabilities at September 30, 2022, and December 31, 2021. September 30, 2022 December 31, 2021 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Dollars in millions ASSETS MEASURED ON A RECURRING BASIS Trading account assets: U.S. Treasury, agencies and corporations $ — $ 847 $ — $ 847 $ — $ 530 $ — $ 530 States and political subdivisions — 68 — 68 — 96 — 96 Other mortgage-backed securities — 133 — 133 — 44 — 44 Other securities 2 12 — 14 — 13 — 13 Total trading account securities 2 1,060 — 1,062 — 683 — 683 Commercial loans — 6 — 6 — 18 — 18 Total trading account assets 2 1,066 — 1,068 — 701 — 701 Securities available for sale: U.S. Treasury, agencies and corporations — 9,386 — 9,386 — 9,472 — 9,472 States and political subdivisions — — — — — — — — Agency residential collateralized mortgage obligations — 17,237 — 17,237 — 21,119 — 21,119 Agency residential mortgage-backed securities — 3,985 — 3,985 — 5,122 — 5,122 Agency commercial mortgage-backed securities — 9,391 — 9,391 — 9,651 — 9,651 Other securities — 1 — 1 — — — — Total securities available for sale $ — $ 40,000 $ — $ 40,000 $ — $ 45,364 $ — $ 45,364 Other investments: Principal investments: Direct $ — $ — $ 1 $ 1 $ — $ — $ 1 $ 1 Indirect (measured at NAV) (a) — — — 36 — — — 45 Total principal investments — — 1 37 — — 1 46 Equity investments: Direct 3 — 2 5 24 — 9 33 Direct (measured at NAV) (a) — — — 29 — — — 21 Indirect (measured at NAV) (a) — — — 4 — — — 5 Total equity investments 3 — 2 38 24 — 9 59 Total other investments 3 — 3 75 24 — 10 105 Loans, net of unearned income (residential) — — 9 9 — — 11 11 Loans held for sale (residential) — 61 — 61 — 281 — 281 Derivative assets: Interest rate — 227 (8) 219 — 774 33 807 Foreign exchange 180 45 — 225 $ 71 10 — 81 Commodity — 1,857 — 1,857 — 1,330 — 1,330 Credit — — — — — — 1 1 Other — 20 — 20 — 22 5 27 Derivative assets 180 2,148 (8) 2,321 71 2,136 39 2,246 Netting adjustments (b) — — — (720) — — — (284) Total derivative assets 180 2,148 (8) 1,601 71 2,136 39 1,962 Total assets on a recurring basis at fair value $ 185 $ 43,275 $ 4 $ 42,814 $ 95 $ 48,482 $ 60 $ 48,424 LIABILITIES MEASURED ON A RECURRING BASIS Bank notes and other short-term borrowings: Short positions $ 143 $ 683 $ — $ 826 $ 75 $ 513 $ — $ 588 Derivative liabilities: Interest rate — 1,429 — 1,429 — 253 — 253 Foreign exchange 172 45 — 217 66 10 — 76 Commodity — 1,838 — 1,838 — 1,335 — 1,335 Credit — — 4 4 — 5 7 12 Other — 34 3 37 — 11 — 11 Derivative liabilities 172 3,346 7 3,525 66 1,614 7 1,687 Netting adjustments (b) — — — (1,925) — — — (1,526) Total derivative liabilities 172 3,346 7 1,600 66 1,614 7 161 Total liabilities on a recurring basis at fair value $ 315 $ 4,029 $ 7 $ 2,426 $ 141 $ 2,127 $ 7 $ 749 (a) Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheet. (b) Netting adjustments represent the amounts recorded to convert our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The net basis takes into account the impact of bilateral collateral and master netting agreements that allow us to settle all derivative contracts with a single counterparty on a net basis and to offset the net derivative position with the related cash collateral. Total derivative assets and liabilities include these netting adjustments. The following table presents the fair value of our direct and indirect principal investments and related unfunded commitments at September 30, 2022, as well as financial support provided for the three and nine months ended September 30, 2022, and September 30, 2021. Financial support provided Three months ended September 30, Nine months ended September 30, September 30, 2022 2022 2021 2022 2021 Dollars in millions Fair Value Unfunded Funded Funded Other Funded Funded Other Funded Funded Other Funded Funded Other INVESTMENT TYPE Direct investments $ 1 $ — $ — $ — $ — $ — $ — $ — $ — $ — Indirect investments (measured at NAV) (a) 36 10 — — — — — — 4 — Total $ 37 $ 10 $ — $ — $ — $ — $ — $ — $ 4 $ — (a) Our indirect investments consist of buyout funds, venture capital funds, and fund of funds. These investments are generally not redeemable. Instead, distributions are received through the liquidation of the underlying investments of the fund. An investment in any one of these funds typically can be sold only with the approval of the fund’s general partners. At September 30, 2022, no significant liquidation of the underlying investments has been communicated to Key. The purpose of funding our capital commitments to these investments is to allow the funds to make additional follow-on investments and pay fund expenses until the fund dissolves. We, and all other investors in the fund, are obligated to fund the full amount of our respective capital commitments to the fund based on our and their respective ownership percentages, as noted in the applicable Limited Partnership Agreement. Changes in Level 3 Fair Value Measurements The following table shows the components of the change in the fair values of our Level 3 financial instruments measured at fair value on a recurring basis for the three and nine months ended September 30, 2022, and September 30, 2021. Dollars in millions Beginning of Period Balance Gains (Losses) Included in Other Comprehensive Income Gains (Losses) Included in Earnings Purchases Sales Settlements Transfers Other Transfers into Level 3 Transfers out of Level 3 End of Period Balance Unrealized Gains (Losses) Included in Earnings Nine months ended September 30, 2022 Other investments Principal investments Direct (a) $ 1 $ — $ — $ — $ — $ — $ — $ — $ — $ 1 $ — Equity investments Direct (a) 9 — (3) — (4) — — — — 2 (3) Loans, net of unearned income (residential) 11 — (2) — (1) — 1 — — 9 — Derivative instruments (b) Interest rate 33 — (71) (c) 1 (2) — — 35 (d) (4) (d) (8) — Credit (6) — 2 (c) — — — — — — (4) — Other (e) 5 — — (c) — — — (8) — — (3) — Three months ended September 30, 2022 Other investments Principal investments Direct (a) $ 1 $ — $ — $ — $ — $ — $ — $ — $ — $ 1 $ — Other indirect — — — — — — — — — — — Equity investments Direct (a) 6 — — — (4) — — — — 2 — Loans held for sale (residential) — — — — — — — — — — — Loans, net of unearned income (residential) 11 — (1) — (1) — — — — 9 — Derivative instruments (b) Interest rate (3) — (16) (c) (3) — — — 5 (d) 9 (d) (8) — Credit (3) — — (c) — — — (1) — — (4) — Other (e) 1 — 1 (c) — — — (5) — — (3) — Dollars in millions Beginning of Period Balance Gains (Losses) Included in Other Comprehensive Income Gains (Losses) Included in Earnings Purchases Sales Settlements Transfers Other Transfers into Level 3 Transfers out of Level 3 End of Period Balance Unrealized Gains (Losses) Included in Earnings Nine months ended September 30, 2021 Securities available for sale Other securities $ 13 $ 9 $ — $ — $ — $ — $ — $ — $ — $ 22 $ — Other investments Principal investments Direct (a) 1 — — — — — — — — 1 — Equity investments Direct (a) 13 — (1) — — — — — (3) 9 (1) Loans held for sale (residential) — — — — (1) — 1 — — — — Loans, net of unearned income (residential) 11 — — — (2) — 1 — — 10 — Derivative instruments (b) Interest rate 56 — (20) (c) 1 (7) — — 21 (d) (17) (d) 34 — Credit (10) — 4 (c) — — — — (6) — Other (e) 32 — (3) (c) — — — (23) — — 6 — Three months ended September 30, 2021 Securities available for sale Other securities $ 22 $ — $ — $ — $ — $ — $ — $ — $ — $ 22 $ — Other investments Principal investments Direct (a) 1 — — — — — — — — 1 — Equity investments Direct (a) 9 — 9 — Loans held for sale (residential) — — — — $ — — $ — — — — — Loans, net of unearned income (residential) 11 — — — — — — — — 10 — Derivative instruments (b) Interest rate 35 — (5) (c) $ 1 (1) 9 (d) (5) (d) 34 Credit (5) — — (c) (1) — — — — — (6) — Other (e) 13 — — (c) — — (7) — — 6 — (a) Realized and unrealized gains and losses on principal investments and other equity investments are reported in “other income” on the income statement. (b) Amounts represent Level 3 derivative assets less Level 3 derivative liabilities. (c) Realized and unrealized gains and losses on derivative instruments are reported in “corporate services income” and “other income” on the income statement. (d) Certain instruments previously classified as Level 2 were transferred to Level 3 because Level 3 unobservable inputs became significant. Certain derivatives previously classified as Level 3 were transferred to Level 2 because Level 3 unobservable inputs became less significant. (e) Amounts represent Level 3 interest rate lock commitments. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Certain assets and liabilities are measured at fair value on a nonrecurring basis in accordance with GAAP. The adjustments to fair value generally result from the application of accounting guidance that requires assets and liabilities to be recorded at the lower of cost or fair value, or assessed for impairment. For more information on the valuation techniques used to measure classes of assets and liabilities measured at fair value on a nonrecurring basis, refer to Note 6 (“Fair Value Measurements”) in our 2021 Form 10-K. There were no liabilities measured at fair value on a nonrecurring basis at September 30, 2022, and December 31, 2021. The following table presents our assets measured at fair value on a nonrecurring basis at September 30, 2022, and December 31, 2021: September 30, 2022 December 31, 2021 Dollars in millions Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total ASSETS MEASURED ON A NONRECURRING BASIS Collateral-dependent loans $ — $ — $ 69 $ 69 $ — $ — $ 28 $ 28 Loans held for sale — — — — — — — — Accrued income and other assets — — 17 17 — — 80 80 Total assets on a nonrecurring basis at fair value $ — $ — $ 86 $ 86 $ — $ — $ 108 $ 108 We have other investments in equity securities that do not have readily determinable fair values and do not qualify for the practical expedient to measure the investment using a net asset value per share. We have elected to measure these securities at cost less impairment plus or minus adjustments due to observable orderly transactions. Impairment is recorded when there is evidence that the expected fair value of the investment has declined to below the recorded cost. At each reporting period, we assess if these investments continue to qualify for this measurement alternative. At September 30, 2022, and December 31, 2021, the carrying amount of equity investments under this method was $214 million and $173 million, respectively. One million in impairment was recorded for the three months ended September 30, 2022. Quantitative Information about Level 3 Fair Value Measurements The range and weighted-average of the significant unobservable inputs used to fair value our material Level 3 recurring and nonrecurring assets at September 30, 2022, and December 31, 2021, along with the valuation techniques used, are shown in the following table: Level 3 Asset (Liability) Valuation Technique Significant Unobservable Input Range (Weighted-Average) (a), (b) Dollars in millions September 30, 2022 December 31, 2021 September 30, 2022 December 31, 2021 Recurring Loans, net of unearned income (residential) $ 9 $ 11 Market comparable pricing Comparability factor 53.47 - 85.89% (80.88%) 64.50-97.30% (94.24%) Derivative instruments: Interest rate (8) 33 Discounted cash flows Probability of default .02 - 100% (14.90%) .02 - 100% (8.88%) Loss given default 0 - 1 (.499) 0 - 1 (.500) Insignificant level 3 assets, net of liabilities (c) (4) 9 Nonrecurring Collateral-dependent loans 69 28 Fair value of collateral Discount rate 0 - 85.00% (26.00%) 0 - 10.00% (8.00%) Accrued income and other assets: OREO and other Level 3 assets (d) 17 13 Appraised value Appraised value N/M N/M (a) The weighted average of significant unobservable inputs is calculated using a weighting relative to fair value. (b) For significant unobservable inputs with no range, a single figure is reported to denote the single quantitative factor used. (c) Represents the aggregate amount of Level 3 assets and liabilities measured at fair value on a recurring basis that are individually and in the aggregate insignificant. The amount includes certain equity investments and certain financial derivative assets and liabilities. (d) Excludes $67 million pertaining to servicing assets at December 31, 2021. No servicing assets required nonrecurring valuation adjustments at September 30, 2022. Refer to Note 8 (“Mortgage Servicing Assets”) for significant unobservable inputs pertaining to these assets. Fair Value Disclosures of Financial Instruments The Levels in the fair value hierarchy ascribed to our financial instruments and the related carrying amounts at September 30, 2022, and December 31, 2021, are shown in the following tables. Assets and liabilities are further arranged by measurement category. September 30, 2022 Fair Value Dollars in millions Carrying Amount Level 1 Level 2 Level 3 Measured at NAV Netting Adjustment Total ASSETS (by measurement category) Fair value - net income Trading account assets (b) $ 1,068 $ 2 $ 1,066 $ — $ — $ — $ 1,068 Other investments (b) 1,272 3 — 1,199 70 — 1,272 Loans, net of unearned income (residential) (d) 9 — — 9 — — 9 Loans held for sale (residential) (b) 61 — 61 — — — 61 Derivative assets - trading (b) 1,535 181 2,171 (8) — (809) (f) 1,535 Fair value - OCI Securities available for sale (b) 40,000 — 40,000 — — — 40,000 Derivative assets - hedging (b)(g) 66 — (23) — — 89 (f) 66 Amortized cost Held-to-maturity securities (c) 8,163 — 7,596 — — — 7,596 Loans, net of unearned income (d) 115,038 — — 109,738 — — 109,738 Loans held for sale (b) 987 — — 987 — — 987 Other Cash and other short-term investments (a) 5,613 5,613 — — — — 5,613 LIABILITIES (by measurement category) Fair value - net income Derivative liabilities - trading (b) $ 1,590 $ 172 $ 3,321 $ 7 $ — $ (1,910) (f) $ 1,590 Fair value - OCI Derivative liabilities - hedging (b)(g) 10 — 25 — — (15) (f) 10 Amortized cost Time deposits (e) 5,847 — 5,837 — — — 5,837 Short-term borrowings (a) 8,800 143 8,657 — — — 8,800 Long-term debt (e) 18,257 10,960 6,638 — — — 17,598 Other Deposits with no stated maturity (a) 139,008 — 139,008 — — — 139,008 December 31, 2021 Fair Value Dollars in millions Carrying Amount Level 1 Level 2 Level 3 Measured at NAV Netting Adjustment Total ASSETS (by measurement category) Fair value - net income Trading account assets (b) $ 701 $ — $ 701 $ — $ — $ — $ 701 Other investments (b) 639 24 — 543 72 — 639 Loans, net of unearned income (residential) (d) 11 — — 11 — — 11 Loans held for sale (residential) (b) 281 — 281 — — — 281 Derivative assets - trading (b) 1,887 $ 71 2,096 40 — (320) (f) 1,887 Fair value - OCI Securities available for sale (b) 45,364 — 45,364 — — — 45,364 Derivative assets - hedging (b)(g) 75 — 39 — — 36 (f) 75 Amortized cost Held-to-maturity securities (c) 7,539 — 7,665 — — — 7,665 Loans, net of unearned income (d) 100,782 — — 100,428 — — 100,428 Loans held for sale (b) 2,448 — — 2,448 — — 2,448 Other Short-term investments - U.S. Treasury Bills (b) — — — — — — — Cash and other short-term investments (a) 11,923 11,923 — — — — 11,923 LIABILITIES (by measurement category) Fair value - net income Derivative liabilities - trading (b) $ 157 $ 66 $ 1,610 $ 7 $ — $ (1,526) (f) $ 157 Fair value - OCI Derivative liabilities - hedging (b)(g) 4 — 4 — — — (f) 4 Amortized cost Time deposits (e) 3,858 — 3,866 — — — 3,866 Short-term borrowings (a) 761 75 686 — — — 761 Long-term debt (e) 12,042 11,813 705 — — — 12,518 Other Deposits with no stated maturity (a) 148,714 — 148,714 — — — 148,714 Valuation Methods and Assumptions (a) Fair value equals or approximates carrying amount. The fair value of deposits with no stated maturity does not take into consideration the value ascribed to core deposit intangibles. (b) Information pertaining to our methodology for measuring the fair values of these assets and liabilities is included in the sections entitled “Qualitative Disclosures of Valuation Techniques” and “Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis” within our 2021 Form 10-K Note 6 (“Fair Value Measurements”). Investments accounted for under the cost method (or cost less impairment adjusted for observable price changes for certain equity investments) are classified as Level 3 assets. These investments are not actively traded in an open market as sales for these types of investments are rare. The carrying amount of the investments carried at cost are adjusted for declines in value if they are considered to be other-than-temporary (or due to observable orderly transactions of the same issuer for equity investments eligible for the cost less impairment measurement alternative). These adjustments are included in “other income” on the income statement. (c) Fair values of held-to-maturity securities are determined by using models that are based on security-specific details, as well as relevant industry and economic factors. The most significant of these inputs are quoted market prices, interest rate spreads on relevant benchmark securities, and certain prepayment assumptions. We review the valuations derived from the models to ensure that they are reasonable and consistent with the values placed on similar securities traded in the secondary markets. (d) The fair value of loans is based on the present value of the expected cash flows. The projected cash flows are based on the contractual terms of the loans, adjusted for prepayments and use of a discount rate based on the relative risk of the cash flows, taking into account the loan type, maturity of the loan, liquidity risk, servicing costs, and a required return on debt and capital. In addition, an incremental liquidity discount is applied to certain loans, using historical sales of loans during periods of similar economic conditions as a benchmark. The fair value of loans includes lease financing receivables at their aggregate carrying amount, which is equivalent to their fair value. (e) Fair values of time deposits and long-term debt classified as Level 2 are based on discounted cash flows utilizing relevant market inputs. (f) Netting adjustments represent the amounts recorded to convert our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The net basis takes into account the impact of bilateral collateral and master netting agreements that allow us to settle all derivative contracts with a single counterparty on a net basis and to offset the net derivative position with the related cash collateral. Total derivative assets and liabilities include these netting adjustments. (g) Derivative assets-hedging and derivative liabilities-hedging includes both cash flow and fair value hedges. Additional information regarding our accounting policies for cash flow and fair value hedges is provided in Note 1 (“Summary of Significant Accounting Policies”) under the heading “Derivatives and Hedging” beginning on page 113 of our 2021 Form 10-K. Discontinued assets — education lending business . Our discontinued assets include government-guaranteed and private education loans originated through our education lending business that was discontinued in September 2009. This portfolio consists of loans recorded at carrying value with appropriate valuation reserves, and loans in portfolio recorded at fair value. All of these loans were excluded from the table above as follows: • Loans at carrying value, net of allowance, of $467 million ($383 million at fair value) at September 30, 2022, and $567 million ($486 million at fair value) at December 31, 2021; • Portfolio loans at fair value of $1 million at September 30, 2022, and $2 million at December 31, 2021. These loans and securities are classified as Level 3 because we rely on unobservable inputs when determining fair value since observable market data is not available.

Securities

Securities	9 Months Ended
	Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Securities	6. Securities The amortized cost, unrealized gains and losses, and approximate fair value of our securities available for sale and held-to-maturity securities are presented in the following tables. Gross unrealized gains and losses represent the difference between the amortized cost and the fair value of securities on the balance sheet as of the dates indicated. Accordingly, the amount of these gains and losses may change in the future as market conditions change. September 30, 2022 December 31, 2021 Dollars in millions Amortized Cost (a) Gross Unrealized Gains Gross Unrealized Losses Fair Value Amortized Cost (b) Gross Unrealized Gains Gross Unrealized Losses Fair Value SECURITIES AVAILABLE FOR SALE U.S. Treasury, agencies, and corporations $ 10,062 $ — $ 676 $ 9,386 $ 9,573 $ — $ 101 $ 9,472 Agency residential collateralized mortgage obligations 20,706 — 3,469 17,237 21,430 99 410 21,119 Agency residential mortgage-backed securities 4,742 — 757 3,985 5,137 37 52 5,122 Agency commercial mortgage-backed securities 10,780 2 1,391 9,391 9,753 188 290 9,651 Other securities 1 — — 1 — — — — Total securities available for sale $ 46,291 $ 2 $ 6,293 $ 40,000 $ 45,893 $ 324 $ 853 $ 45,364 HELD-TO-MATURITY SECURITIES Agency residential collateralized mortgage obligations $ 3,818 $ — $ 251 $ 3,567 $ 2,196 $ 33 $ — $ 2,229 Agency residential mortgage-backed securities 185 — 18 167 164 6 — 170 Agency commercial mortgage-backed securities 2,524 1 190 2,335 2,678 118 — 2,796 Asset-backed securities (c) 1,621 — 108 1,513 2,485 — 31 2,454 Other securities 15 — 1 14 16 — — 16 Total held-to-maturity securities $ 8,163 $ 1 568 $ 7,596 $ 7,539 $ 157 $ 31 $ 7,665 (a) Amortized cost amounts exclude accrued interes t receivable which is recorded within Other Assets on the balance sheet. At September 30, 2022, accrued interest receivable on available for sale securities and held-to-maturity securities totaled $66 million and $18 million, respectively. (b) Amortized cost amounts exclude accrued interes t receivable which is recorded within Other Assets on the balance sheet. At December 31, 2021, accrued interest receivable on available for sale securities and held-to-maturity securities totaled $59 million and $15 million , respectively. (c) Includes $1.6 billion of securities as of September 30, 2022, and $2.5 billion of securities as of December 31, 2021, related to the purchase of senior notes from a securitization collateralized by sold indirect auto loans. The following table summarizes securities in an unrealized loss position for which an allowance for credit losses has not been recorded as of September 30, 2022, and December 31, 2021. Duration of Unrealized Loss Position Less than 12 Months 12 Months or Longer Total Dollars in millions Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses September 30, 2022 Securities available for sale: U.S Treasury, agencies, and corporations $ 1,197 $ 94 $ 8,189 $ 582 $ 9,386 $ 676 Agency residential collateralized mortgage obligations 9,673 1,489 7,562 1,980 17,235 3,469 Agency residential mortgage-backed securities 1,584 219 2,398 538 3,982 757 Agency commercial mortgage-backed securities 5,221 383 4,104 1,008 9,325 1,391 Held-to-maturity securities: Agency residential collateralized mortgage obligations 3,407 250 9 1 3,416 251 Agency residential mortgage-backed securities 167 18 — — 167 18 Agency commercial mortgage-backed securities 2,324 190 — — 2,324 190 Asset-backed securities 1,511 108 1 — (a) 1,512 108 Other securities 7 — (a) 3 1 10 1 Total securities in an unrealized loss position $ 25,091 $ 2,751 $ 22,266 $ 4,110 $ 47,357 $ 6,861 December 31, 2021 Securities available for sale: U.S. Treasury, agencies, and corporations $ 9,078 $ 98 $ 243 $ 3 $ 9,321 $ 101 Agency residential collateralized mortgage obligations 12,603 315 1,255 95 13,858 410 Agency residential mortgage-backed securities 3,793 49 178 3 3,971 52 Agency commercial mortgage-backed securities 1,645 75 3,834 215 5,479 290 Held-to-maturity securities: Agency residential collateralized mortgage obligations 96 — (b) — — 96 — Asset-backed securities 2,450 31 1 — (b) 2,451 31 Other securities 15 — (b) — — 15 — Total securities in an unrealized loss position $ 29,680 $ 568 $ 5,511 $ 316 $ 35,191 $ 884 (a) At September 30, 2022, gross unrealized losses totaled less than $1 million for other securities held-to-maturity with a loss duration of less than 12 months and asset-backed securities held-to-maturity with a loss duration of 12 months or longer. (b) At December 31, 2021, gross unrealized losses totaled less than $1 million for other securities held-to-maturity and agency residential collateralized mortgage obligations held-to-maturity with a loss duration of less than 12 months. At December 31, 2021, gross unrealized losses totaled less than $1 million for asset backed securities held-to-maturity with a loss duration greater than 12 months or longer. Based on our evaluation at September 30, 2022, an allowance for credit losses has not been recorded nor have unrealized losses been recognized into income. The issuers of the securities are of high credit quality and have a history of no credit losses, management does not intend to sell and it is likely that management will not be required to sell the securities prior to their anticipated recovery, and the decline in fair value is largely attributed to changes in interest rates and other market conditions. The issuers continue to make timely principal and interest payments. At September 30, 2022, securities available for sale and held-to-maturity securities totaling $12.6 billion we re pledged to secure securities sold under repurchase agreements, to secure public and trust deposits, to facilitate access to secured funding, and for other purposes required or permitted by law. The following table shows our securities by remaining maturity. CMOs, other mortgage-backed securities, and asset-backed securities in the available for sale portfolio and held-to-maturity portfolio are presented based on their expected average lives. The remaining securities, in both the available-for-sale and held-to-maturity portfolios, are presented based on their remaining contractual maturity. Actual maturities may differ from expected or contractual maturities since borrowers have the right to prepay obligations with or without prepayment penalties. September 30, 2022 Securities Available for Sale Held to Maturity Securities Dollars in millions Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 620 $ 599 $ 24 $ 23 Due after one through five years 16,918 15,566 4,526 4,203 Due after five through ten years 21,439 17,962 2,500 2,303 Due after ten years 7,314 5,873 1,113 1,067 Total $ 46,291 $ 40,000 $ 8,163 $ 7,596

Derivatives and Hedging Activit

Derivatives and Hedging Activities	9 Months Ended
	Sep. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	7. Derivatives and Hedging Activities We are a party to various derivative instruments, mainly through our subsidiary, KeyBank. The primary derivatives that we use are interest rate swaps, caps, floors, forwards, and futures; foreign exchange contracts; commodity derivatives; and credit derivatives. Generally, these instruments help us manage exposure to interest rate risk, mitigate the credit risk inherent in our loan portfolio, hedge against changes in foreign currency exchange rates, and meet client financing and hedging needs. At September 30, 2022, after taking into account the effects of bilateral collateral and master netting agreements, we had $66 million of derivative assets and $10 million of derivative liabilities that relate to contracts entered into for hedging purposes. As of the same date, after taking into account the effects of bilateral collateral and master netting agreements and a reserve for potential future losses, we had derivative assets of $1.5 billion and derivative liabilities of $1.6 billion that were not designated as hedging instruments. These positions are primarily comprised of derivative contracts entered into for client accommodation purposes. Additional information regarding our accounting policies for derivatives is provided in Note 1 (“Summary of Significant Accounting Policies”) under the heading “Derivatives and Hedging” beginning on page 113 of our 2021 Form 10-K. Our derivative strategies and related risk management objectives are described in Note 8 (“Derivatives and Hedging Activities”) beginning on page 141 of our 2021 Form 10-K. Fair Values, Volume of Activity, and Gain/Loss Information Related to Derivative Instruments The following table summarizes the fair values of our derivative instruments on a gross and net basis as of September 30, 2022, and December 31, 2021. The derivative asset and liability balances are presented on a gross basis, prior to the application of bilateral collateral and master netting agreements, but after the variation margin payments with central clearing organizations have been applied as settlement, as applicable. Total derivative assets and liabilities are adjusted to take into account the impact of legally enforceable master netting agreements that allow us to settle all derivative contracts with a single counterparty on a net basis and to offset the net derivative position with the related cash collateral. Securities collateral related to legally enforceable master netting agreements is not offset on the balance sheet. Our derivative instruments are included in “accrued income and other assets” or “accrued expenses and other liabilities” on the balance sheet, as follows: September 30, 2022 December 31, 2021 Fair Value (a) Fair Value (a) Dollars in millions Notional Amount Derivative Assets Derivative Liabilities Notional Amount Derivative Assets Derivative Liabilities Derivatives designated as hedging instruments: Interest rate $ 40,624 $ (22) $ 25 $ 38,654 $ 39 $ 4 Derivatives not designated as hedging instruments: Interest rate 78,319 241 1,404 72,088 768 249 Foreign exchange 8,405 225 217 9,073 81 76 Commodity 17,016 1,857 1,838 14,151 1,330 1,335 Credit 116 — 4 465 1 12 Other (b) 1,484 20 37 3,330 27 11 Total 105,340 2,343 3,500 99,107 2,207 1,683 Netting adjustments (c) — (720) (1,925) — (284) (1,526) Net derivatives in the balance sheet 145,964 1,601 1,600 137,761 1,962 161 Other collateral (d) — — (12) — (1) — Net derivative amounts $ 145,964 $ 1,601 $ 1,588 $ 137,761 $ 1,961 $ 161 (a) We take into account bilateral collateral and master netting agreements that allow us to settle all derivative contracts held with a single counterparty on a net basis, and to offset the net derivative position with the related cash collateral when recognizing derivative assets and liabilities. As a result, we could have derivative contracts with negative fair values included in derivative assets and contracts with positive fair values included in derivative liabilities. (b) Other derivatives include interest rate lock commitments related to our residential and commercial banking activities, forward sale commitments related to our residential mortgage banking activities, forward purchase and sales contracts consisting of contractual commitments associated with “to be announced” securities and when-issued securities, and other customized derivative contracts. (c) Netting adjustments represent the amounts recorded to convert our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. (d) Other collateral represents the amount that cannot be used to offset our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The other collateral consists of securities and is exchanged under bilateral collateral and master netting agreements that allow us to offset the net derivative position with the related collateral. The application of the other collateral cannot reduce the net derivative position below zero. Therefore, excess other collateral, if any, is not reflected above. Fair value hedges. During the nine months ended September 30, 2022, we did not exclude any portion of fair value hedging instruments from the assessment of hedge effectiveness. The following tables summarize the amounts that were recorded on the balance sheet as of September 30, 2022, and December 31, 2021, related to cumulative basis adjustments for fair value hedges. September 30, 2022 Dollars in millions Balance sheet line item in which the hedge item is included Carrying amount of hedged item (a) Hedge accounting basis adjustment (b) Interest rate contracts Long-term debt $ 9,409 $ (606) Interest rate contracts Securities Available for Sale (c) 405 51 December 31, 2021 Balance sheet line item in which the hedge item is included Carrying amount of hedged item (a) Hedge accounting basis adjustment (b) Interest rate contracts Long-term debt $ 7,553 $ 138 Interest rate contracts Securities Available for Sale (c) 6,280 134 (a) The carrying amount represents the portion of the asset or liability designated as the hedged item. (b) Basis adjustments related to de-designated hedged items that no longer qualify as fair value hedges reduced the hedge accounting basis adjustm en t by $7 million a nd $7 million at September 30, 2022, and December 31, 2021, respectively, (c) These amounts are designed as fair value hedges under the last-of-layer method. The carrying amount represents the amortized costs basis of the prepayable financial assets used to designate hedging relationships in which the hedged item is the l ast layer expected to be remaining at the end of the relationship. At September 30, 2022, and December 31, 2021, the amortized costs of the closed portfolios in these hedging relationships was $720 million and $7.7 billion, respectively. Cash flow hedges. During the nine-month period ended September 30, 2022, we did not exclude any portion of cash flow hedging instruments from the assessment of hedge effectiveness. Considering the interest rates, yield curves, and notional amounts as of September 30, 2022, we expect to reclassify an estimated $566 million of after-tax net losses on derivative instruments designated as cash flow hedges from AOCI to income during the next 12 months. In addition, we expect to reclassify approximately $3 million of net losses related to terminated cash flow hedges from AOCI to income during the next 12 months. These reclassified amounts could differ from actual amounts recognized due to changes in interest rates hedge de-designations and the addition of other hedges subsequent to September 30, 2022. As of September 30, 2022, the maximum length of time over which we hedge forecasted transactions is 4.92 years. The following tables summarize the effect of fair value and cash flow hedge accounting on the income statement for the three- and nine-month periods ended September 30, 2022, and September 30, 2021. Location and amount of net gains (losses) recognized in income on fair value and cash flow hedging relationships Dollars in millions Interest expense – long-term debt Interest income – loans Interest Income - securities Investment banking and debt placement fees Three months ended September 30, 2022 Total amounts presented in the consolidated statement of income $ (146) $ 1,134 $ 196 $ 154 Net gains (losses) on fair value hedging relationships Interest contracts Recognized on hedged items $ 359 $ — $ (14) $ — Recognized on derivatives designated as hedging instruments (367) — 16 — Net income (expense) recognized on fair value hedges $ (8) $ — $ 2 $ — Net gain (loss) on cash flow hedging relationships Interest contracts Realized gains (losses) (pre-tax) reclassified from AOCI into net income $ (1) $ (66) $ — $ 2 Net income (expense) recognized on cash flow hedges $ (1) $ (66) $ — $ 2 Three months ended September 30, 2021 Total amounts presented in the consolidated statement of income $ (54) $ 882 $ 135 $ 235 Net gains (losses) on fair value hedging relationships Interest contracts Recognized on hedged items $ 37 $ — $ (38) $ — Recognized on derivatives designated as hedging instruments (8) — 39 — Net income (expense) recognized on fair value hedges $ 29 $ — $ 1 $ — Net gain (loss) on cash flow hedging relationships Interest contracts Realized gains (losses) (pre-tax) reclassified from AOCI into net income $ (1) $ 79 $ — $ (1) Net income (expense) recognized on cash flow hedges $ (1) $ 79 $ — $ (1) Location and amount of net gains (losses) recognized in income on fair value and cash flow hedging relationships Dollars in millions Interest expense – long-term debt Interest income – loans Interest Income - Securities Investment banking and debt placement fees Nine months ended September 30, 2022 Total amounts presented in the consolidated statement of income $ (256) $ 2,894 $ 557 $ 466 Net gains (losses) on fair value hedging relationships Interest contracts Recognized on hedged items $ 744 $ — $ (341) $ — Recognized on derivatives designated as hedging instruments (710) — 350 — Net income (expense) recognized on fair value hedges $ 34 $ — $ 9 $ — Net gain (loss) on cash flow hedging relationships Interest contracts Realized gains (losses) (pre-tax) reclassified from AOCI into net income $ (3) $ 16 $ — $ 9 Net income (expense) recognized on cash flow hedges $ (3) $ 16 $ — $ 9 Nine months ended September 30, 2021 Total amounts presented in the consolidated statement of income $ (168) $ 2,659 $ 398 $ 614 Net gains (losses) on fair value hedging relationships Interest contracts Recognized on hedged items $ 210 $ — $ (147) $ — Recognized on derivatives designated as hedging instruments (113) — 147 — Net income (expense) recognized on fair value hedges $ 97 $ — $ — $ — Net gain (loss) on cash flow hedging relationships Interest contracts Realized gains (losses) (pre-tax) reclassified from AOCI into net income $ (3) $ 253 $ — $ — Net income (expense) recognized on cash flow hedges $ (3) $ 253 $ — $ — The following tables summarize the pre-tax net gains (losses) on our cash flow hedges for the three- and nine-month periods ended September 30, 2022, and September 30, 2021, and where they are recorded on the income statement. The table includes net gains (losses) recognized in OCI during the period and net gains (losses) reclassified from OCI into income during the current period. Dollars in millions Net Gains (Losses) Recognized in OCI Income Statement Location of Net Gains (Losses) Reclassified From OCI Into Income Net Gains (Losses) Reclassified From OCI Into Income Three months ended September 30, 2022 Cash Flow Hedges Interest rate $ (709) Interest income — Loans $ (66) Interest rate 3 Interest expense — Long-term debt (1) Interest rate — Investment banking and debt placement fees 2 Total $ (706) $ (65) Three months ended September 30, 2021 Cash Flow Hedges Interest rate $ (2) Interest income — Loans $ 79 Interest rate — Interest expense — Long-term debt (1) Interest rate 4 Investment banking and debt placement fees (1) Total $ 2 $ 77 Dollars in millions Net Gains (Losses) Recognized in OCI Income Statement Location of Net Gains (Losses) Reclassified From OCI Into Income Net Gains (Losses) Reclassified From OCI Into Income (a) Nine months ended September 30, 2022 Cash Flow Hedges Interest rate $ (1,620) Interest income — Loans $ 16 Interest rate 7 Interest expense — Long-term debt (3) Interest rate 12 Investment banking and debt placement fees 9 Total $ (1,601) $ 22 Nine months ended September 30, 2021 Cash Flow Hedges Interest rate $ (144) Interest income — Loans $ 253 Interest rate 2 Interest expense — Long-term debt (3) Interest rate 9 Investment banking and debt placement fees — Total $ (133) $ 250 Nonhedging instruments The following table summarizes the pre-tax net gains (losses) on our derivatives that are not designated as hedging instruments for the three- and nine-month periods ended September 30, 2022, and September 30, 2021, and where they are recorded on the income statement. Three months ended September 30, 2022 Three months ended September 30, 2021 Dollars in millions Corporate services income Consumer mortgage income Other income Total Corporate services income Consumer mortgage income Other income Total NET GAINS (LOSSES) Interest rate $ 11 $ — $ (2) $ 9 $ 8 $ — $ — $ 8 Foreign exchange 12 — — 12 12 — — 12 Commodity 5 — — 5 4 — — 4 Credit — — (17) (17) 1 — (9) (8) Other — 4 30 34 — — — — Total net gains (losses) $ 28 $ 4 $ 11 $ 43 $ 25 $ — $ (9) $ 16 Nine months ended September 30, 2022 Nine months ended September 30, 2021 Dollars in millions Corporate services income Consumer mortgage income Other income Total Corporate services income Consumer mortgage income Other income Total NET GAINS (LOSSES) Interest rate $ 37 $ — $ 6 $ 43 $ 19 $ — $ 1 $ 20 Foreign exchange 37 — — 37 34 — — 34 Commodity 13 — — 13 12 — — 12 Credit 1 — (32) (31) 5 — (27) (22) Other — 2 14 16 — 13 (22) (9) Total net gains (losses) $ 88 $ 2 $ (12) $ 78 $ 70 $ 13 $ (48) $ 35 Counterparty Credit Risk We hold collateral in the form of cas h and highly rated securities issued by the U.S. Treasury, government-sponsored enterprises, or GNMA . Cash collateral of $31 million was netted against derivative assets on the balance sheet at September 30, 2022, compared to $100 million of cash collateral netted against derivative assets at December 31, 2021. The cash collateral netted against derivative liabilities totaled $1.2 billion at September 30, 2022, and $1.1 billion at December 31, 2021. Our means of mitigating and managing exposure to credit risk on derivative contracts is described in Note 8 (“Derivatives and Hedging Activities”) beginning on page 141 of our 2021 Form 10-K under the heading “Counterparty Credit Risk.” The following table summarizes the fair value of our derivative assets by type at the dates indicated. These assets represent our gross exposure to potential loss after taking into account the effects of bilateral collateral and master netting agreements and other means used to mitigate risk. Dollars in millions September 30, 2022 December 31, 2021 Interest rate $ 163 $ 696 Foreign exchange 127 31 Commodity 1,324 1,108 Credit — — Other 18 27 Derivative assets before collateral 1,632 1,862 Plus(Less): Related collateral (31) 100 Total derivative assets $ 1,601 $ 1,962 We enter into derivative transactions with two primary groups: broker-dealers and banks, and clients. Given that these groups have different economic characteristics, we have different methods for managing counterparty credit exposure and credit risk. We enter into transactions with broker-dealers and banks for various risk management purposes. These types of transactions are primarily high dollar volume. We enter into bilateral collateral and master netting agreements with these counterparties. We clear certain types of derivative transactions with these counterparties, whereby central clearing organizations become the counterparties to our derivative contracts. In addition, we enter into derivative contracts through swa p execution facilities. Swap clearing and swap execution facilities reduce our exposure to counterparty credit risk. At September 30, 2022, we had gross exposure of $443 million to broker-dealers and banks. We had net exposure of $244 million after the application of master netting agreements and cash collateral, where such qualifying agreements exist. We had net exposure of $243 million after considering $1 million of additional collateral held in the form of securities. We enter into transactions using master netting agreements with clients to accommodate their business needs. In most cases, we mitigate our credit exposure by cross-collateralizing these transactions to the underlying loan collateral. For transactions that are not clearable, we mitigate our market risk by buying and selling U.S. Treasuries and Eurodollar futures or entering into offsetting positions. Due to the cross-collateralization to the underlying loan, we typically do not exchange cash or marketable securities collateral in connection with these transactions. To address the risk of default associated with these contracts, we have established a CVA reserve (included in “accrued income and other assets”) in the amount of $25 million at September 30, 2022. The CVA is calculated from potential future exposures, expected recovery rates, and market-implied probabilities of default. At September 30, 2022, we had gross exposure of $1.5 billion to client counterparties and other entities that are not broker-dealers or banks for derivatives that have associated master netting agreements. We had net exposure of $1.4 billion o n our derivatives with these counterparties after the application of master netting agreements, collateral, an d the related reserve. Credit Derivatives We are a buyer and, under limited circumstances, may be a seller of credit protection through the credit derivative market. We purchase credit derivatives to manage the credit risk associated with specific commercial lending and swap obligations as well as exposures to debt securities. Our credit derivative portfolio was in a net liability position o f $3 million a s of September 30, 2022, and $11 million as of December 31, 2021. Our credit derivative portfolio consists of traded credit default swap indices and risk participation agreements. Additional descriptions of our credit derivatives are provided in Note 8 (“Derivatives and Hedging Activities”) beginning on page 141 of our 2021 Form 10-K under the heading “Credit Derivatives.” The following table provides information on the types of credit derivatives sold by us and held on the balance sheet at September 30, 2022, and December 31, 2021. The notional amount represents the amount that the seller could be required to pay. The payment/performance risk shown in the table represents a weighted average of the default probabilities for all reference entities in the respective portfolios. These default probabilities are implied from observed credit indices in the credit default swap market, which are mapped to reference entities based on Key’s internal risk rating. September 30, 2022 December 31, 2021 Dollars in millions Notional Amount Average Term (Years) Payment / Performance Risk Notional Amount Average Term (Years) Payment / Performance Risk Other (a) $ — 4.1 5.54 % $ 149 13.86 3.15 % Total credit derivatives sold $ — — — $ 149 — — (a) Other Notional Amount is less than $1 million as of 9/30/2022. Credit Risk Contingent Features We have entered into certain derivative contracts that require us to post collateral to the counterparties when these contracts are in a net liability position. The amount of collateral to be posted is based on the amount of the net liability and thresholds generally related to our long-term senior unsecured credit ratings with Moody’s and S&P. Collateral requirements also are based on minimum transfer amounts, which are specific to each Credit Support Annex (a component of the ISDA Master Agreement) that we have signed with the counterparties. In a limited number of instances, counterparties have the right to terminate their ISDA Master Agreements with us if our ratings fall below a certain lev el, usually investment-grade level (i.e., “Baa3” for Moody’s and “BBB-” for S&P). At September 30, 2022, KeyBank’s rating was “A3” with Moody’s and “A-” with S&P, and KeyCorp’s rating was “Baa1” with Moody’s and “BBB+” with S&P. As of September 30, 2022, the aggregate fair value of all derivative contracts with credit risk contingent features (i.e., those containing collateral posting or termination provisions based on our ratings) held by KeyBank that were in a net liability position tota led $1.1 billion, which was comprised of $315 million in derivative assets and $1.4 billion in derivative liabilities. We had $1.1 billion in cash and securities collateral posted to cover those positions as of September 30, 2022. There were no derivative contracts with credit risk contingent features held by KeyCorp at September 30, 2022. The following table summarizes the additional cash and securities collateral that KeyBank would have been required to deliver under the ISDA Master Agreements had the credit risk contingent features been triggered for the derivative contracts in a net liability position as of September 30, 2022, and December 31, 2021. The additional collateral amounts were calculated based on scenarios under which KeyBank’s ratings are downgraded one, two, or three ratings as of September 30, 2022, and December 31, 2021, and take into account all collateral already posted. A similar calculation was performed for Ke yCorp, and no addition al collateral would have been required as of September 30, 2022, and December 31, 2021. For more information about the credit ratings for KeyBank and KeyCorp, see the discussion under the heading “Factors affecting liquidity” in the section entitled “Liquidity risk management” in Item 2 of this report. September 30, 2022 December 31, 2021 Dollars in millions Moody’s S&P Moody’s S&P KeyBank’s long-term senior unsecured credit ratings A3 A- A3 A- One rating downgrade $ 1 $ 1 $ 3 $ 3 Two rating downgrades 1 1 3 3 Three rating downgrades 1 1 3 3 KeyBank’s long-term senior unsecured credit rating was three ratings above noninvestment grade at Moody’s and S&P as of September 30, 2022, and December 31, 2021. If Key Bank’s ratings had been downgraded below investment grade as of September 30, 2022, or December 31, 2021, payments of $2 million and $4 million, respectively, would have been required to either terminate the contracts or post additional collateral for th ose contracts in a net liability position, taking into account all collateral already posted. If KeyCorp’s ratings had been downgraded below investment grade as of September 30, 2022, or December 31, 2021, no payments would have been required to either terminate the contracts or post additional collateral for those contracts in a net liability position, taking into account all collateral already posted.

Mortgage Servicing Assets

Mortgage Servicing Assets	9 Months Ended
	Sep. 30, 2022
Servicing Asset [Abstract]
Mortgage Servicing Assets	8. Mortgage Servicing Assets We originate and periodically sell commercial and residential mortgage loans but continue to service those loans for the buyers. We also may purchase the right to service commercial mortgage loans from other lenders. We record a servicing asset if we purchase or retain the right to service loans in exchange for servicing fees that exceed the going market servicing rate and are considered more than adequate compensation for servicing. Additional information pertaining to the accounting for mortgage and other servicing assets is included in Note 1 (“Summary of Significant Accounting Policies”) under the heading “Servicing Assets” beginning on page 114 of our 2021 Form 10-K. Commercial Changes in the carrying amount of commercial mortgage servicing assets are summarized as follows: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Balance at beginning of period $ 647 $ 600 $ 634 $ 578 Servicing retained from loan sales 26 31 78 88 Purchases 9 8 32 22 Amortization (31) (30) (93) (89) Temporary (impairments) recoveries — — — 10 Balance at end of period $ 651 $ 609 $ 651 $ 609 Fair value at end of period $ 942 $ 735 $ 942 $ 735 The fair value of commercial mortgage servicing assets is determined by calculating the present value of future cash flows associated with servicing the loans. This calculation uses a number of assumptions that are based on current market conditions. The range and weighted average of the significant unobservable inputs used to determine the fair value of our commercial mortgage servicing assets at September 30, 2022, and September 30, 2021, along with the valuation techniques, are shown in the following table: Dollars in millions September 30, 2022 September 30, 2021 Valuation Technique Significant Unobservable Input Range Weighted Average Range Weighted Average Discounted cash flow Expected defaults 0.98 % 2.00 % 1.08 % 1.00 % 2.00 % 1.15 % Residual cash flows discount rate 8.43 % 10.17 % 9.52 % 7.64 % 10.49 % 9.31 % Escrow earn rate 3.69 % 3.97 % 3.87 % 1.04 % 1.37 % 1.04 % Loan assumption rate — % 1.50 % 1.19 % — % 1.71 % 1.40 % If these economic assumptions change or prove incorrect, the fair value of commercial mortgage servicing assets may also change. Expected credit losses, escrow earning rates, and discount rates are critical to the valuation of commercial mortgage servicing assets. Estimates of these assumptions are based on how a market participant would view the respective rates, and reflect historical data associated with the commercial mortgage loans, industry trends, and other considerations. Actual rates may differ from those estimated due to changes in a variety of economic factors. A decrease in the value assigned to the escrow earning rates would cause a decrease in the fair value of our commercial mortgage servicing assets. An increase in the assumed default rates of commercial mortgage loans or an increase in the assigned discount rates would cause a decrease in the fair value of our commercial mortgage servicing assets. Prepayment activity on commercial serviced loans does not significantly affect the valuation of our commercial mortgage servicing assets. Unlike residential mortgages, commercial mortgages experience significantly lower prepayments due to certain contractual restrictions affecting the borrower’s ability to prepay the mortgage. The amortization of commercial servicing assets is determined in proportion to, and over the period of, the estimated net servicing income. The amortization of commercial servicing assets for each period, as shown in the table at the beginning of this note, is recorded as a reduction to contractual fee income. The contractual fee income from servicing commercial mortgage loans totaled $219 million for the nine-month period ended September 30, 2022, and $193 million for the nine-month period ended September 30, 2021. This fee income was offset by $93 million of amortization for the nine-month period ended September 30, 2022, and $89 million for the nine-month period ended September 30, 2021. Both the contractual fee income and the amortization are recorded, net, in “commercial mortgage servicing fees” on the income statement. Residential Changes in the carrying amount of residential mortgage servicing assets are summarized as follows: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Balance at beginning of period $ 104 $ 77 $ 93 $ 58 Servicing retained from loan sales 4 9 21 32 Purchases — — — — Amortization (3) (4) (10) (14) Temporary (impairments) recoveries — 3 1 9 Balance at end of period $ 105 $ 85 $ 105 $ 85 Fair value at end of period $ 127 $ 89 $ 127 $ 89 The fair value of mortgage servicing assets is determined by calculating the present value of future cash flows associated with servicing the loans. This calculation uses a number of assumptions that are based on current market conditions. The range and weighted-average of the significant unobservable inputs used to fair value our mortgage servicing assets at September 30, 2022, and September 30, 2021, along with the valuation techniques, are shown in the following table: September 30, 2022 September 30, 2021 Valuation Technique Significant Unobservable Input Range Weighted Average Range Weighted Average Discounted cash flow Prepayment speed 7.05 % 44.74 % 8.09 % 8.03 % 48.88 % 11.67 % Discount rate 7.50 % 8.53 % 7.53 % 7.50 % 8.57 % 7.54 % Servicing cost $ 62.00 $ 4,375 $ 66.59 $ 62.00 $ 4,375 $ 68.15 If these economic assumptions change or prove incorrect, the fair value of residential mortgage servicing assets may also change. Prepayment speed, discount rates, and servicing cost are critical to the valuation of residential mortgage servicing assets. Estimates of these assumptions are based on how a market participant would view the respective rates and reflect historical data associated with the residential mortgage loans, industry trends, and other considerations. Actual rates may differ from those estimated due to changes in a variety of economic factors. An increase in the prepayment speed would cause a decrease in the fair value of our residential mortgage servicing assets. An increase in the assigned discount rates and servicing cost assumptions would cause a decrease in the fair value of our residential mortgage servicing assets. The amortization of servicing assets for September 30, 2022, as shown in the table above, is recorded as a reduction to contractual fee income. The contractual fee income from servicing residential mortgage loans totaled $27 million for the nine-month period ended September 30, 2022, and $30 million for the nine-month period ended

Leases

Leases	9 Months Ended
	Sep. 30, 2022
Leases [Abstract]
Leases	9. Leases As a lessee, we enter into leases of land, buildings, and equipment. Our real estate leases primarily relate to bank branches and office space. The leases of equipment principally relate to technology assets for data processing and data storage. As a lessor, we primarily provide financing through our equipment leasing business. For more information on our leasing activity, see Note 10 (“Leases”) beginning on page 149 of our 2021 Form 10-K. Lessor Equipment Leasing Leases may have fixed or floating rate terms. Variable payments are based on an index or other specified rate and are included in rental payments. Certain leases contain an option to extend the lease term or the option to terminate at the discretion of the lessee. Under certain conditions, lease agreements may also contain the option for a lessee to purchase the underlying asset. Interest income from sales-type and direct financing leases is recognized in "interest income — loans" on the income statement. Income related to operating leases is recognized in “operating lease income and other leasing gains” on the income statement. The components of equipment leasing income are summarized in the table below: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Sales-type and direct financing leases Interest income on lease receivable $ 16 $ 13 $ 47 $ 59 Interest income related to accretion of unguaranteed residual asset 3 9 11 12 Total sales-type and direct financing lease income $ 19 $ 22 $ 58 $ 71 Operating leases Operating lease income related to lease payments $ 25 $ 31 $ 81 $ 95 Other operating leasing gains (6) 6 (2) 16 Total operating lease income and other leasing gains 19 37 79 111 Total lease income $ 38 $ 59 $ 137 $ 182
Leases	9. Leases As a lessee, we enter into leases of land, buildings, and equipment. Our real estate leases primarily relate to bank branches and office space. The leases of equipment principally relate to technology assets for data processing and data storage. As a lessor, we primarily provide financing through our equipment leasing business. For more information on our leasing activity, see Note 10 (“Leases”) beginning on page 149 of our 2021 Form 10-K. Lessor Equipment Leasing Leases may have fixed or floating rate terms. Variable payments are based on an index or other specified rate and are included in rental payments. Certain leases contain an option to extend the lease term or the option to terminate at the discretion of the lessee. Under certain conditions, lease agreements may also contain the option for a lessee to purchase the underlying asset. Interest income from sales-type and direct financing leases is recognized in "interest income — loans" on the income statement. Income related to operating leases is recognized in “operating lease income and other leasing gains” on the income statement. The components of equipment leasing income are summarized in the table below: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Sales-type and direct financing leases Interest income on lease receivable $ 16 $ 13 $ 47 $ 59 Interest income related to accretion of unguaranteed residual asset 3 9 11 12 Total sales-type and direct financing lease income $ 19 $ 22 $ 58 $ 71 Operating leases Operating lease income related to lease payments $ 25 $ 31 $ 81 $ 95 Other operating leasing gains (6) 6 (2) 16 Total operating lease income and other leasing gains 19 37 79 111 Total lease income $ 38 $ 59 $ 137 $ 182
Leases	9. Leases As a lessee, we enter into leases of land, buildings, and equipment. Our real estate leases primarily relate to bank branches and office space. The leases of equipment principally relate to technology assets for data processing and data storage. As a lessor, we primarily provide financing through our equipment leasing business. For more information on our leasing activity, see Note 10 (“Leases”) beginning on page 149 of our 2021 Form 10-K. Lessor Equipment Leasing Leases may have fixed or floating rate terms. Variable payments are based on an index or other specified rate and are included in rental payments. Certain leases contain an option to extend the lease term or the option to terminate at the discretion of the lessee. Under certain conditions, lease agreements may also contain the option for a lessee to purchase the underlying asset. Interest income from sales-type and direct financing leases is recognized in "interest income — loans" on the income statement. Income related to operating leases is recognized in “operating lease income and other leasing gains” on the income statement. The components of equipment leasing income are summarized in the table below: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Sales-type and direct financing leases Interest income on lease receivable $ 16 $ 13 $ 47 $ 59 Interest income related to accretion of unguaranteed residual asset 3 9 11 12 Total sales-type and direct financing lease income $ 19 $ 22 $ 58 $ 71 Operating leases Operating lease income related to lease payments $ 25 $ 31 $ 81 $ 95 Other operating leasing gains (6) 6 (2) 16 Total operating lease income and other leasing gains 19 37 79 111 Total lease income $ 38 $ 59 $ 137 $ 182
Leases	9. Leases As a lessee, we enter into leases of land, buildings, and equipment. Our real estate leases primarily relate to bank branches and office space. The leases of equipment principally relate to technology assets for data processing and data storage. As a lessor, we primarily provide financing through our equipment leasing business. For more information on our leasing activity, see Note 10 (“Leases”) beginning on page 149 of our 2021 Form 10-K. Lessor Equipment Leasing Leases may have fixed or floating rate terms. Variable payments are based on an index or other specified rate and are included in rental payments. Certain leases contain an option to extend the lease term or the option to terminate at the discretion of the lessee. Under certain conditions, lease agreements may also contain the option for a lessee to purchase the underlying asset. Interest income from sales-type and direct financing leases is recognized in "interest income — loans" on the income statement. Income related to operating leases is recognized in “operating lease income and other leasing gains” on the income statement. The components of equipment leasing income are summarized in the table below: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Sales-type and direct financing leases Interest income on lease receivable $ 16 $ 13 $ 47 $ 59 Interest income related to accretion of unguaranteed residual asset 3 9 11 12 Total sales-type and direct financing lease income $ 19 $ 22 $ 58 $ 71 Operating leases Operating lease income related to lease payments $ 25 $ 31 $ 81 $ 95 Other operating leasing gains (6) 6 (2) 16 Total operating lease income and other leasing gains 19 37 79 111 Total lease income $ 38 $ 59 $ 137 $ 182
Leases	9. Leases As a lessee, we enter into leases of land, buildings, and equipment. Our real estate leases primarily relate to bank branches and office space. The leases of equipment principally relate to technology assets for data processing and data storage. As a lessor, we primarily provide financing through our equipment leasing business. For more information on our leasing activity, see Note 10 (“Leases”) beginning on page 149 of our 2021 Form 10-K. Lessor Equipment Leasing Leases may have fixed or floating rate terms. Variable payments are based on an index or other specified rate and are included in rental payments. Certain leases contain an option to extend the lease term or the option to terminate at the discretion of the lessee. Under certain conditions, lease agreements may also contain the option for a lessee to purchase the underlying asset. Interest income from sales-type and direct financing leases is recognized in "interest income — loans" on the income statement. Income related to operating leases is recognized in “operating lease income and other leasing gains” on the income statement. The components of equipment leasing income are summarized in the table below: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Sales-type and direct financing leases Interest income on lease receivable $ 16 $ 13 $ 47 $ 59 Interest income related to accretion of unguaranteed residual asset 3 9 11 12 Total sales-type and direct financing lease income $ 19 $ 22 $ 58 $ 71 Operating leases Operating lease income related to lease payments $ 25 $ 31 $ 81 $ 95 Other operating leasing gains (6) 6 (2) 16 Total operating lease income and other leasing gains 19 37 79 111 Total lease income $ 38 $ 59 $ 137 $ 182

Goodwill

Goodwill	9 Months Ended
	Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	10. Goodwill Our annual goodwill impairment testing is performed as of October 1 each year, or more frequently as events occur or circumstances change that would more-likely-than-not reduce the fair value of a reporting unit below its carrying amount. A quantitative or qualitative testing approach may be used. Additional information pertaining to our accounting policy for goodwill and other intangible assets is summarized in Note 1 (“Summary of Significant Accounting Policies”) under the heading “Goodwill and Other Intangible Assets” beginning on page 114 of our 2021 Form 10-K. The fair values of each reporting unit are estimated using a combination of market and income approaches. In our latest quantitative test as of October 1, 2021, the income approach utilized discounted cash flow projections for each reporting unit. The market approach consisted primarily of public company metrics but also utilized recent transactions in the financial services industry. The carrying amounts of Key’s reporting units represent the combination of regulatory and economic equity for goodwill impairment testing and management reporting purposes. Changes in the carrying amount of goodwill by reporting segment are presented in the following table: Dollars in millions Consumer Bank Commercial Bank Total BALANCE AT SEPTEMBER 30, 2021 $ 1,761 $ 912 $ 2,673 XUP acquisition — 20 20 BALANCE AT DECEMBER 31, 2021 $ 1,761 $ 932 $ 2,693 XUP acquisition measurement period adjustment — 1 1 GradFin acquisition 58 — 58 BALANCE AT SEPTEMBER 30, 2022 $ 1,819 $ 933 $ 2,752

Variable Interest Entities

Variable Interest Entities	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable Interest Entities	11. Variable Interest Entities Our significant VIEs are summarized below. Additional information pertaining to the criteria used in determining if an entity is a VIE is included in Note 13 (“Variable Interest Entities “) beginning on page 153 of our 2021 Form 10-K. LIHTC investments. We had $1.8 billion and $1.6 billion of investments in LIHTC operating partnerships at September 30, 2022, and December 31, 2021, respectively. These investments are recorded in “accrued income and other assets” on our balance sheet. We do not have any loss reserves recorded related to these investments because we believe the likelihood of any loss to be remote. For all legally binding, unfunded equity commitments, we increase our recognized investment and recognize a liability. As of September 30, 2022, and December 31, 2021, we had liabilities of $845 million and $675 million, respectively, related to investments in qualified affordable housing projects, which are recorded in “accrued expenses and other liabilities” on our balance sheet. We continue to invest in these LIHTC operating partnerships. The assets and liabilities presented in the table below convey the size of KCDC’s direct and indirect investments at September 30, 2022, and December 31, 2021. As these investments represent unconsolidated VIEs, the assets and liabilities of the investments themselves are not recorded on our balance sheet. Additional information pertaining to our LIHTC investments is included in Note 13 (“Variable Interest Entities”) beginning on page 153 of our 2021 Form 10-K. Unconsolidated VIEs Dollars in millions Total Assets Total Liabilities Maximum Exposure to Loss September 30, 2022 LIHTC investments $ 7,344 $ 2,469 $ 2,242 December 31, 2021 LIHTC investments $ 7,839 $ 3,252 $ 1,985 We amortize our LIHTC investments over the period that we expect to receive the tax benefits. During the first nine months ended September 30, 2022, we recognized $142 million of amortization and $138 million of tax credits associated with these investments within “income taxes” on our income statement. During the first nine months ended September 30, 2021, we recognized $147 million of amortization and $139 million of tax credits associated with these investments within “income taxes” on our income statement. Principal investments. Our maximum exposure to loss associated with indirect principal investments consists of the investments’ fair value plus any unfunded equity commitments. The fair value of our indirect principal investments totaled $36 million and $45 million at September 30, 2022, and December 31, 2021, respectively. These investments are recorded in “other investments” on our balance sheet. The table below reflects the size of the private equity funds in which we were invested as well as our maximum exposure to loss in connection with these investments at September 30, 2022, and December 31, 2021. Unconsolidated VIEs Dollars in millions Total Assets Total Liabilities Maximum Exposure to Loss September 30, 2022 Indirect investments $ 6,968 $ 92 $ 46 December 31, 2021 Indirect investments $ 8,437 $ 178 $ 57 Through our principal investing entities, we have formed and funded operating entities that provide management and other related services to our investment company funds, which directly invest in portfolio companies. These entities had no assets at September 30, 2022, and December 31, 2021, that can be used to settle the entities’ obligations. The entities had no liabilities at September 30, 2022, and December 31, 2021, and other equity investors have no recourse to our general credit. Additional information on our indirect and direct principal investments is provided in Note 6 (“Fair Value Measurements”) beginning on page 130 and in Note 13 (“Variable Interest Entities “) beginning on page 153 of our 2021 Form 10-K. Other unconsolidated VIEs. We are involved with other various entities in the normal course of business which we have determined to be VIEs. We have determined that we are not the primary beneficiary of these VIEs because we do not have the power to direct the activities that most significantly impact their economic performance or hold a variable interest that could potentially be significant. The table below shows our assets and liabilities associated with these unconsolidated VIEs at September 30, 2022, and December 31, 2021. These assets are recorded in “accrued income and other assets,” “other investments,” “securities available for sale,” “held-to-maturity securities,” and “loans, net of unearned income” on our balance sheet. Of the total balance as of September 30, 2022, $1.6 billion related to the purchase of senior notes from a securitization collateralized by sold indirect auto loans. Additional information pertaining to our other unconsolidated VIEs is included in Note 13 (“Variable Interest Entities“) under the heading “Other unconsolidated VIEs” on page 155 of our 2021 Form 10-K. Other unconsolidated VIEs Dollars in millions Total Assets Total Liabilities September 30, 2022 Other unconsolidated VIEs $ 2,002 $ 1 December 31, 2021 Other unconsolidated VIEs $ 2,827 $ 1

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes Income Tax Provision In accordance with the applicable accounting guidance, the principal method established for computing the provision for income taxes in interim periods requires us to make our best estimate of the effective tax rate expected to be applicable for the full year. This estimated effective tax rate is then applied to interim consolidated pre-tax operating income to determine the interim provision for income taxes. The effective tax rate, which is the provision for income taxes as a percentage of income before income taxes, was 18.7% for the third quarter of 2022 and 20.4% for the third quarter of 2021. The effective tax rates are less than our combined federal and state statutory tax rate of 23.7%, primarily due to income from investments in tax-advantaged assets such as corporate-owned life insurance and credits associated with renewable energy and low-income housing investments. Deferred Taxes At September 30, 2022, we had a net deferred tax asset of $1.9 billion, compared to a net deferred tax asset of $189 million at December 31, 2021, which are included in “accrued income and other assets” on the balance sheet. The increase in the deferred tax asset is primarily related to market fluctuations in the investment security portfolio accounted for in other comprehensive income. To determine the amount of deferred tax assets that are more likely than not to be realized, and therefore recorded, we conduct a quarterly assessment of all available evidence. This evidence includes, but is not limited to, taxable income in prior periods, projected future taxable income, and projected future reversals of deferred tax items. These assessments involve a degree of subjectivity and may undergo change. Based on these criteria, we had a valuation allowance of $11 million at September 30, 2022, and $12 million at December 31, 2021. The valuation allowance is associated with federal and state capital loss carryforwards. Unrecognized Tax Benefits At September 30, 2022, Key’s unrecognized tax benefits were $46 million. As permitted under the applicable accounting guidance for income taxes, it is our policy to recognize interest and penalties related to unrecognized tax benefits in “income tax expense.” Pre-1988 Bank Reserves Acquired in a Business Combination Retained earnings of KeyBank included approximately $92 million of allocated bad debt deductions for which no income taxes have been recorded. Under current federal law, these reserves are subject to recapture into taxable income if KeyBank, or any successor, fails to maintain its bank status under the Internal Revenue Code or makes non-dividend distributions or distributions greater than its accumulated earnings and profits. No deferred tax liability has been established as these events are not expected to occur in the foreseeable future.

Acquisitions and Discontinued O

Acquisitions and Discontinued Operations	9 Months Ended
	Sep. 30, 2022
Business Combination and Asset Acquisition [Abstract]
Acquisitions and Discontinued Operations	13. Acquisitions and Discontinued Operations Acquisitions XUP Payments. On November 19, 2021, KeyBank acquired XUP Payments, a B2B focused digital platform. The acquisition was accounted for as a business combination. As a result of the acquisition, we recognized goodwill of $20.6 million and no separately identified intangible assets were recorded. Other acquired assets and liabilities of XUP were immaterial. The valuation was final as of March 31, 2022. GradFin. On May 2, 2022, KeyBank acquired GradFin, a public service loan forgiveness counseling provider. The acquisition was accounted for as a business combination. Consideration paid totaled $72 million consisting of $62 million in cash and $10 million in contingent consideration. As a result of the acquisition, we recognized goodwill of $58 million and other intangible assets of $12 million, with remaining assets acquired consisting primarily of cash. Other acquired assets and liabilities of GradFin were immaterial. The valuation was final as of September 30, 2022. Discontinued operations Discontinued operations primarily includes our government-guaranteed and private education lending business. At September 30, 2022, and December 31, 2021, approximately $467 million and $567 million, respectively, of education loans are included in discontinued assets on the Consolidated Balance Sheets. Net interest income after provision for credit losses for this business is not material and is included in income (loss) from discontinued operations, net of taxes on the Consolidated Statements of Income.

Securities Financing Activities

Securities Financing Activities	9 Months Ended
	Sep. 30, 2022
Banking and Thrift, Other Disclosure [Abstract]
Securities Financing Activities	14. Securities Financing Activities Additional information regarding our securities financing activities, including risk management activities, is provided in Note 1 (“Summary of Significant Accounting Policies”) beginning on page 107 our 2021 Form 10-K and Note 16 (“Securities Financing Activities”) beginning on page 158 of our 2021 Form 10-K . The following table summarizes our securities financing agreements at September 30, 2022, and December 31, 2021: September 30, 2022 December 31, 2021 Dollars in millions Gross Amount Presented in Balance Sheet Netting Adjustments (a) Collateral (b) Net Amounts Gross Amount Presented in Balance Sheet Netting Adjustments (a) Collateral (b) Net Amounts Offsetting of financial assets: Reverse repurchase agreements $ 52 $ (52) $ — $ — $ 11 $ (6) $ (5) $ — Securities borrowed 500 — (500) — 500 — (500) — Total $ 552 $ (52) $ (500) $ — $ 511 $ (6) $ (505) $ — Offsetting of financial liabilities: Repurchase agreements (c) $ 122 $ (52) $ (70) $ — $ 173 $ (6) $ (167) $ — Total $ 122 $ (52) $ (70) $ — $ 173 $ (6) $ (167) $ — (a) Netting adjustments take into account the impact of master netting agreements that allow us to settle with a single counterparty on a net basis. (b) These adjustments take into account the impact of bilateral collateral agreements that allow us to offset the net positions with the related collateral. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above. (c) Repurchase agreements are collateralized by mortgaged-backed agency securities and are contracted on an overnight or continuous basis.

Employee Benefits

Employee Benefits	9 Months Ended
	Sep. 30, 2022
Retirement Benefits [Abstract]
Employee Benefits	15. Employee Benefits Pension Plans The components of net pension cost (benefit) for all funded and unfunded plans are recorded in Other expense and are summarized in the following table. For more information on our Pension Plans and Other Postretirement Benefit Plans, see Note 18 (“Employee Benefits”) beginning on page 161 of our 2021 Form 10-K. Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Interest cost on PBO $ 7 $ 6 $ 20 $ 18 Expected return on plan assets (7) (7) (20) (21) Amortization of losses 4 5 11 14 Settlement loss — 7 — 7 Net pension cost $ 4 $ 11 $ 11 $ 18

Trust Preferred Securities Issu

Trust Preferred Securities Issued by Unconsolidated Subsidiaries	9 Months Ended
	Sep. 30, 2022
Banking and Thrift, Other Disclosure [Abstract]
Trust Preferred Securities Issued by Unconsolidated Subsidiaries	16. Trust Preferred Securities Issued by Unconsolidated Subsidiaries We own the outstanding common stock of business trusts formed by us that issued corporation-obligated, mandatorily redeemable, trust preferred securities. The trusts used the proceeds from the issuance of their trust preferred securities and common stock to buy debentures issued by KeyCorp. These debentures are the trusts’ only assets; the interest payments from the debentures finance the distributions paid on the mandatorily redeemable trust preferred securities. The outstanding common stock of these business trusts is recorded in Other investments on the Consolidated Balance Sheets. We unconditionally guarantee the following payments or distributions on behalf of the trusts: • required distributions on the trust preferred securities; • the redemption price when a capital security is redeemed; and • the amounts due if a trust is liquidated or terminated. The Regulatory Capital Rules, discussed in “Supervision and regulation” in Item 2 of this report, require us to treat our mandatorily redeemable trust preferred securities as Tier 2 capital. The trust preferred securities, common stock, and related debentures are summarized as follows: Dollars in millions Trust Preferred Securities, Net of Discount (a) Common Stock Principal Amount of Debentures, Net of Discount (b) Interest Rate of Trust Preferred Securities and Debentures (c) Maturity of Trust Preferred Securities and Debentures September 30, 2022 KeyCorp Capital I $ 156 $ 6 $ 162 3.017 % 2028 KeyCorp Capital II 95 4 99 6.875 2029 KeyCorp Capital III 107 4 111 7.750 2029 HNC Statutory Trust III 20 1 21 4.380 2035 Willow Grove Statutory Trust I 20 1 21 4.062 2036 HNC Statutory Trust IV 18 1 19 4.603 2037 Westbank Capital Trust II 8 — 8 5.717 2034 Westbank Capital Trust III 8 — 8 5.717 2034 Total $ 432 $ 17 $ 449 5.316 % — December 31, 2021 $ 466 $ 17 $ 483 4.271 % — (a) The trust preferred securities must be redeemed when the related debentures mature, or earlier if provided in the governing indenture. Each issue of trust preferred securities carries an interest rate identical to that of the related debenture. Certain trust preferred securities include basis adjustments related to fair value hedges totaling $17 million at September 30, 2022, and $52 million at December 31, 2021. See Note 7 (“Derivatives and Hedging Activities”) for an explanation of fair value hedges. (b) We have the right to redeem these debentures. If the debentures purchased by KeyCorp Capital I, HNC Statutory Trust III, Willow Grove Statutory Trust I, HNC Statutory Trust IV, Westbank Capital Trust II, or Westbank Capital Trust III are redeemed before they mature, the redemption price will be the principal amount, plus any accrued but unpaid interest. If the debentures purchased by KeyCorp Capital II or KeyCorp Capital III are redeemed before they mature, the redemption price will be the greater of: (i) the principal amount, plus any accrued but unpaid interest, or (ii) the sum of the present values of principal and interest payments discounted at the Treasury Rate (as defined in the applicable indenture), plus 20 basis points for KeyCorp Capital II or 25 basis points for KeyCorp Capital III, or 50 basis points in the case of redemption upon either a tax or a capital treatment event for either KeyCorp Capital II or KeyCorp Capital III, plus any accrued but unpaid interest. The principal amount of certain debentures includes basis adjustments related to fair value hedges totaling $17 million at September 30, 2022, and $52 million at December 31, 2021. See Note 7 (“Derivatives and Hedging Activities”) for an explanation of fair value hedges. The principal amount of debentures, net of discounts, is included in “long-term debt” on the balance sheet. (c) The interest rates for the trust preferred securities issued by KeyCorp Capital II and KeyCorp Capital III are fixed. The trust preferred securities issued by KeyCorp Capital I have a floating interest rate, equal to three-month LIBOR plus 74 basis points, that reprices quarterly. The trust preferred securities issued by HNC Statutory Trust III have a floating interest rate, equal to three-month LIBOR plus 140 basis points, that reprices quarterly. The trust preferred securities issued by Willow Grove Statutory Trust I have a floating interest rate, equal to three-month LIBOR plus 131 basis points, that reprices quarterly. The trust preferred securities issued by HNC Statutory Trust IV have a floating interest rate, equal to three-month LIBOR plus 128 basis points, that reprices quarterly. The trust preferred securities issued by Westbank Capital Trust II and Westbank Capital Trust III each have a floating interest rate, equal to three-month LIBOR plus 219 basis points, that reprices quarterly. The total interest rates are weighted-average rates.

Contingent Liabilities and Guar

Contingent Liabilities and Guarantees	9 Months Ended
	Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Contingent Liabilities and Guarantees	17. Contingent Liabilities and Guarantees Legal Proceedings Litigation. From time to time, in the ordinary course of business, we and our subsidiaries are subject to various litigation, investigations, and administrative proceedings. Private, civil litigation may range from individual actions involving a single plaintiff to putative class action lawsuits with potentially thousands of class members. Investigations may involve both formal and informal proceedings, by both government agencies and self-regulatory bodies. These matters may involve claims for substantial monetary relief. At times, these matters may present novel claims or legal theories. Due to the complex nature of these various other matters, it may be years before some matters are resolved. While it is impossible to ascertain the ultimate resolution or range of financial liability, based on information presently known to us, we do not believe there is any matter to which we are a party, or involving any of our properties that, individually or in the aggregate, would reasonably be expected to have a material adverse effect on our financial condition. We continually monitor and reassess the potential materiality of these litigation matters. We note, however, that in light of the inherent uncertainty in legal proceedings there can be no assurance that the ultimate resolution will not exceed established reserves. As a result, the outcome of a particular matter, or a combination of matters, may be material to our results of operations for a particular period, depending upon the size of the loss or our income for that particular period. Guarantees We are a guarantor in various agreements with third parties. The following table shows the types of guarantees that we had outstanding at September 30, 2022. Information pertaining to the basis for determining the liabilities recorded in connection with these guarantees is included in Note 1 (“Summary of Significant Accounting Policies”) under the heading “Contingencies and Guarantees” beginning on page 115 of our 2021 Form 10-K. September 30, 2022 Maximum Potential Undiscounted Future Payments Liability Recorded Dollars in millions Financial guarantees: Standby letters of credit $ 4,473 $ 84 Recourse agreement with FNMA 6,650 26 Residential mortgage reserve 3,298 14 Written put options (a) 3,883 251 Total $ 18,304 $ 375 (a) The maximum potential undiscounted future payments represent notional amounts of derivatives qualifying as guarantees. We determine the payment/performance risk associated with each type of guarantee described below based on the probability that we could be required to make the maximum potential undiscounted future payments shown in the preceding table. We use a scale of low (0% to 30% probability of payment), moderate (greater than 30% to 70% probability of payment), or high (greater than 70% probability of payment) to assess the payment/performance risk, and have determined that the payment/performance risk associated with each type of guarantee outstanding at September 30, 2022, is low. Information pertaining to the nature of each of the guarantees listed below is included in Note 22 (“Commitments, Contingent Liabilities, and Guarantees”) under the heading “Guarantees” beginning on page 172 of our 2021 Form 10-K. Standby letters of credit. At September 30, 2022, our standby letters of credit had a remaining weighted-average life of 1.7 years, with remaining actual lives ranging from less than 1 year to as many as 12.2 years. Recourse agreement with FNMA. At September 30, 2022, the outstanding commercial mortgage loans in this program had a weighted-average remaining term of 7.5 years, and the unpaid principal balance outstanding of loans sold by us as a participant was $21.7 billion. The maximum potential amount of undiscounted future payments that we could be required to make under this program, as shown in the preceding table, is equal to approximately 30.7% of the principal balance of loans outstanding at September 30, 2022. FNMA delegates responsibility for originating, underwriting, and servicing mortgages, and we assume a limited portion of the risk of loss during the remaining term on each commercial mortgage loan that we sell to FNMA. We maintain a reserve for such potential losses in an amount that we believe approximates the fair value of our liability in addition to the expected credit loss for the guarantee as described in Note 4 (“Asset Quality“). Residential Mortgage Banking. At September 30, 2022, the unpaid principal balance outstanding of loans sold by us in this program was $11.0 billion. The maximum potential amount of undiscounted future payments that we could be required to make under this program, as shown in the preceding table, is equal to approximately 30% of the principal balance of loans outstanding at September 30, 2022. Our liability for estimated repurchase obligations on loans sold, which is included in “accrued expenses and other liabilities” on the balance sheet, was $14 million at September 30, 2022. For more information on our residential mortgages, see Note 8 (“Mortgage Servicing Assets“). Written put options. At September 30, 2022, our written put options had an average life of 1.8 years. These written put options are accounted for as derivatives at fair value, as further discussed in Note 7 (“Derivatives and Hedging Activities”). Written put options where the counterparty is a broker-dealer or bank are accounted for as derivatives at fair value but are not considered guarantees since these counterparties typically do not hold the underlying instruments. In addition, we are a purchaser and seller of credit derivatives, which are further discussed in Note 7 (“Derivatives and Hedging Activities”). Other Off-Balance Sheet Risk Other off-balance sheet risk stems from financial instruments that do not meet the definition of a guarantee as specified in the applicable accounting guidance, and from other relationships. Additional information pertaining to types of other off-balance sheet risk is included in Note 22 (“Commitments, Contingent Liabilities, and Guarantees”) under the heading “Other Off-Balance Sheet Risk” on page 173 of our 2021 Form 10-K.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	9 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Accumulated Other Comprehensive Income	18. Accumulated Other Comprehensive Income Our changes in AOCI for the three and nine months ended September 30, 2022, and September 30, 2021, are as follows: Dollars in millions Unrealized gains (losses) on securities available for sale Unrealized gains (losses) on derivative financial instruments Net pension and postretirement benefit costs Total Balance at December 31, 2021 $ (403) $ 88 $ (271) $ (586) Other comprehensive income before reclassification, net of income taxes (4,380) (1,281) (1) (5,662) Amounts reclassified from AOCI, net of income taxes (a) — (17) 8 (9) Net current-period other comprehensive income, net of income taxes (4,380) (1,298) 7 (5,671) Balance at September 30, 2022 $ (4,783) $ (1,210) $ (264) $ (6,257) Balance at June 30, 2022 $ (3,167) $ (733) $ (266) $ (4,166) Other comprehensive income before reclassification, net of income taxes (1,616) (527) (1) (2,144) Amounts reclassified from AOCI, net of income taxes (a) — 50 3 53 Net current-period other comprehensive income, net of income taxes (1,616) (477) 2 (2,091) Balance at September 30, 2022 $ (4,783) $ (1,210) $ (264) $ (6,257) Balance at December 31, 2020 $ 567 $ 476 $ (305) $ 738 Other comprehensive income before reclassification, net of income taxes (617) 11 (2) (608) Amounts reclassified from AOCI, net of income taxes (a) — (191) 16 (175) Net current-period other comprehensive income, net of income taxes (617) (180) 14 (783) Balance at September 30, 2021 $ (50) $ 296 $ (291) $ (45) Balance at June 30, 2021 $ 124 $ 325 $ (299) $ 150 Other comprehensive income before reclassification, net of income taxes (174) 30 (1) (145) Amounts reclassified from AOCI, net of income taxes (a) — (59) 9 (50) Net current-period other comprehensive income, net of income taxes (174) (29) 8 (195) Balance at September 30, 2021 $ (50) $ 296 $ (291) $ (45) (a) See table below for details about these reclassifications. Our reclassifications out of AOCI for the three and nine months ended September 30, 2022, and September 30, 2021, are as follows: Three months ended September 30, Affected Line Item in the Consolidated Statement of Income Dollars in millions 2022 2021 Unrealized gains (losses) on derivative financial instruments Interest rate $ (66) $ 79 Interest income — Loans Interest rate (1) (1) Interest expense — Long-term debt Interest rate 2 (1) Investment banking and debt placement fees (65) 77 Income (loss) from continuing operations before income taxes (15) 18 Income taxes $ (50) $ 59 Income (loss) from continuing operations Net pension and postretirement benefit costs Amortization of losses $ (4) $ (5) Other expense Settlement loss — (7) Other expense (4) (12) Income (loss) from continuing operations before income taxes (1) (3) Income taxes $ (3) $ (9) Income (loss) from continuing operations Nine months ended September 30, Affected Line Item in the Statement Where Net Income is Presented Dollars in millions 2022 2021 Unrealized gains (losses) on derivative financial instruments Interest rate $ 16 $ 253 Interest income — Loans Interest rate (3) (3) Interest expense — Long-term debt Interest rate 9 — Investment banking and debt placement fees 22 250 Income (loss) from continuing operations before income taxes 5 59 Income taxes $ 17 $ 191 Income (loss) from continuing operations Net pension and postretirement benefit costs Amortization of losses $ (11) $ (14) Other expense Settlement loss — (7) Other expense Amortization of unrecognized prior service credit 1 — Other expense (10) (21) Income (loss) from continuing operations before income taxes (2) (5) Income taxes $ (8) $ (16) Income (loss) from continuing operations

Shareholders' Equity

Shareholders' Equity	9 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Shareholders' Equity	19. Shareholders' Equity Comprehensive Capital Plan In July 2021, the Board of Directors authorized the repurchase of up to $1.5 billion of our Common Shares, effective for the third quarter of 2021 through the third quarter of 2022. In September 2022, the Board of Directors approved the extension of the previous authorization through the third quarter of 2023. During the third quarter of 2022, activity under this authorization was limited to repurchases related to employee equity compensation programs. Consistent with our capital plan, the Board declared a quarterly dividend of $.195 per Common Share for the third quarter of 2022. Preferred Stock The following table summarizes our preferred stock at September 30, 2022. Preferred stock series Amount outstanding (in millions) Shares authorized and outstanding Par value Liquidation preference Ownership interest per depositary share Liquidation preference per depositary share Third quarter 2022 dividends paid per depositary share 5.000% Fixed-to-Floating Rate Perpetual Noncumulative Series D $ 525 21,000 $ 1 $ 25,000 1/25th $ 1,000 $ 12.50 6.125% Fixed-to-Floating Rate Perpetual Noncumulative Series E 500 500,000 1 1,000 1/40th 25 .382813 5.650% Fixed Rate Perpetual Noncumulative Series F 425 425,000 1 1,000 1/40th 25 .353125 5.625% Fixed Rate Perpetual Non-Cumulative Series G 450 450,000 1 1,000 1/40th 25 .351563 6.200% Fixed Rate Reset Perpetual Non-Cumulative Series H 600 600,000 1 1,000 1/40th 25 —

Business Segment Reporting

Business Segment Reporting	9 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Business Segment Reporting	20. Business Segment Reporting The following is description of the segments and their primary businesses at September 30, 2022. Consumer Bank The Consumer Bank serves individuals and small businesses throughout our 15-state branch footprint as well as healthcare professionals nationally through our Laurel Road digital brand by offering a variety of deposit and investment products, personal finance and financial wellness services, lending, student loan refinancing, mortgage and home equity, credit card, treasury services, and business advisory services. In addition, wealth management and investment services are offered to assist non-profit and high-net-worth clients with their banking, trust, portfolio management, life insurance, charitable giving, and related needs. Commercial Bank The Commercial Bank consists of the Commercial and Institutional operating segments. The Commercial operating segment is a full-service, commercial banking platform that focuses primarily on serving the borrowing, cash management, and capital markets needs of middle market clients within Key’s 15-state branch footprint. It is also a significant, national, commercial real estate lender and third-party servicer of commercial mortgage loans and special servicer of CMBS. The Institutional operating segment operates nationally in providing lending, equipment financing, and banking products and services to large corporate and institutional clients. The industry coverage and product teams have established expertise in the following sectors: Consumer, Energy, Healthcare, Industrial, Public Sector, Real Estate, and Technology. The operating segment includes the KBCM platform which provides a broad suite of capital markets products and services including syndicated finance, debt and equity capital markets, derivatives, foreign exchange, financial advisory, and public finance. Additionally, KBCM provides fixed income and equity sales and trading services to investor clients . Other Other includes various corporate treasury activities such as management of our investment securities portfolio, long-term debt, short-term liquidity and funding activities, and balance sheet risk management, our principal investing unit, and various exit portfolios as well as reconciling items which primarily represents the unallocated portion of nonearning assets of corporate support functions. Charges related to the funding of these assets are part of net interest income and are allocated to the business segments through noninterest expense. Reconciling items also include intercompany eliminations and certain items that are not allocated to the business segments because they do not reflect their normal operations. The development and application of the methodologies that we use to allocate items among our business segments is a dynamic process. Accordingly, financial results may be revised periodically to reflect enhanced alignment of expense base allocations drivers, changes in the risk profile of a particular business, or changes in our organizational structure. The table below shows selected financial data for our business segments for the three- and nine-month periods ended September 30, 2022, and September 30, 2021. Capital is assigned to each business segment based on a combination of regulatory and economic equity. Three months ended September 30, Consumer Bank Commercial Bank Other Total Key Dollars in millions 2022 2021 2022 2021 2022 2021 2022 2021 SUMMARY OF OPERATIONS Net interest income (TE) $ 632 $ 582 $ 495 $ 407 $ 76 $ 36 $ 1,203 $ 1,025 Noninterest income 259 288 394 477 30 32 683 797 Total revenue (TE) (a) 891 870 889 884 106 68 1,886 1,822 Provision for credit losses 37 (38) 74 (69) (2) — 109 (107) Depreciation and amortization expense 22 23 28 34 18 18 68 75 Other noninterest expense 645 568 422 436 (29) 33 1,038 1,037 Income (loss) from continuing operations before income taxes (TE) 187 317 365 483 119 17 671 817 Allocated income taxes and TE adjustments 45 76 70 104 16 (6) 131 174 Income (loss) from continuing operations 142 241 295 379 103 23 540 643 Income (loss) from discontinued operations, net of taxes — — — — 2 2 2 2 Net income (loss) 142 241 295 379 105 25 542 645 Less: Net income (loss) attributable to noncontrolling interests — — — — — — — — Net income (loss) attributable to Key $ 142 $ 241 $ 295 $ 379 $ 105 $ 25 $ 542 $ 645 AVERAGE BALANCES (b) Loans and leases $ 42,568 $ 39,854 $ 71,464 $ 59,856 $ 386 $ 428 $ 114,418 $ 100,138 Total assets (a) 45,638 43,039 81,898 69,227 60,656 69,105 188,192 181,371 Deposits 90,044 89,278 52,272 56,401 1,913 1,237 144,229 146,916 OTHER FINANCIAL DATA Net loan charge-offs (b) $ 17 $ 35 $ 27 $ (6) $ (1) $ — $ 43 $ 29 Return on average allocated equity (b) 16.20 % 25.81 % 12.63 % 18.02 % 21.83 % 1.56 % 14.66 % 14.25 % Return on average allocated equity 16.20 25.81 12.63 18.02 22.25 1.70 14.71 14.30 Average full-time equivalent employees (c) 8,114 7,976 2,523 2,371 7,270 6,662 17,907 17,009 (a) Substantially all revenue generated by our major business segments is derived from clients that reside in the United States. Substantially all long-lived assets, including premises and equipment, capitalized software, and goodwill held by our major business segments, are located in the United States. (b) From continuing operations. (c) The number of average full-time equivalent employees was not adjusted for discontinued operations. Nine months ended September 30, Consumer Bank Commercial Bank Other Total Key Dollars in millions 2022 2021 2022 2021 2022 2021 2022 2021 SUMMARY OF OPERATIONS Net interest income (TE) $ 1,745 $ 1,789 $ 1,347 $ 1,234 $ 235 $ 37 $ 3,327 $ 3,060 Noninterest income 769 798 1,192 1,379 86 108 2,047 2,285 Total revenue (TE) (a) 2,514 2,587 2,539 2,613 321 145 5,374 5,345 Provision for credit losses 88 (132) 152 (267) (3) (23) 237 (422) Depreciation and amortization expense 65 61 89 101 53 64 207 226 Other noninterest expense 1,941 1,717 1,184 1,263 (78) 53 3,047 3,033 Income (loss) from continuing operations before income taxes (TE) 420 941 1,114 1,516 349 51 1,883 2,508 Allocated income taxes and TE adjustments 101 226 218 322 47 (25) 366 523 Income (loss) from continuing operations 319 715 896 1,194 302 76 1,517 1,985 Income (loss) from discontinued operations, net of taxes — — — — 6 11 6 11 Net income (loss) 319 715 896 1,194 308 87 1,523 1,996 Less: Net income (loss) attributable to noncontrolling interests — — — — — — — — Net income (loss) attributable to Key $ 319 $ 715 $ 896 $ 1,194 $ 308 (d) $ 87 $ 1,523 $ 1,996 AVERAGE BALANCES (b) Loans and leases $ 40,697 $ 39,954 $ 68,016 $ 60,287 $ 431 $ 321 $ 109,144 $ 100,562 Total assets (a) 43,782 43,165 78,536 69,536 62,471 64,493 184,789 177,194 Deposits 90,939 87,667 54,768 54,309 1,559 1,047 147,266 143,023 OTHER FINANCIAL DATA Net loan charge-offs (b) $ 62 $ 105 $ 59 $ 81 (1) (21) $ 120 $ 165 Return on average allocated equity (b) 11.90 % 26.70 % 13.37 % 18.65 % 14.88 % 1.78 % 13.29 % 14.87 % Return on average allocated equity 11.90 26.70 13.37 18.65 15.17 2.04 13.35 14.96 Average full-time equivalent employees (c) 8,013 8,062 2,441 2,371 7,023 6,601 17,477 17,034 (a) Substantially all revenue generated by our major business segments is derived from clients that reside in the United States. Substantially all long-lived assets, including premises and equipment, capitalized software, and goodwill held by our major business segments, are located in the United States. (b) From continuing operations. (c) The number of average full-time equivalent employees was not adjusted for discontinued operations.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	9 Months Ended
	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	21. Revenue from Contracts with Customers The following table represents a disaggregation of revenue from contracts with customers, by business segment, for the three- and nine-month periods ended September 30, 2022, and September 30, 2021. The development and application of the methodologies that we use to allocate items among our business segments is a dynamic process. Accordingly, financial results may be revised periodically to reflect enhanced alignment of expense base allocations drivers, changes in the risk profile of a particular business, or changes in our organizational structure. Three months ended September 30, 2022 Three months ended September 30, 2021 Dollars in millions Consumer Bank Commercial Bank Total Contract Revenue Consumer Bank Commercial Bank Total Contract Revenue NONINTEREST INCOME Trust and investment services income $ 99 $ 19 $ 118 $ 105 $ 16 $ 121 Investment banking and debt placement fees — 102 102 — 169 169 Services charges on deposit accounts 56 36 92 56 35 91 Cards and payments income 42 20 62 46 61 107 Other noninterest income 3 — 3 2 — 2 Total revenue from contracts with customers $ 200 $ 177 $ 377 $ 209 $ 281 $ 490 Other noninterest income (a) $ 276 $ 275 Noninterest income from Other (b) 30 32 Total noninterest income $ 683 $ 797 (a) Noninterest income considered earned outside the scope of contracts with customers. (b) Other includes other segments that consists of corporate treasury, our principal investing unit, and various exit portfolios as well as reconciling items which primarily represents the unallocated portion of nonearning assets of corporate support functions. Charges related to the funding of these assets are part of net interest income and are allocated to the business segments through noninterest expense. Reconciling items also includes intercompany eliminations and certain items that are not allocated to the business segments because they do not reflect their normal operations. Refer to Note 20 (“Business Segment Reporting”) for more information. Nine months ended September 30, 2022 Nine months ended September 30, 2021 Dollars in millions Consumer Bank Commercial Bank Total Contract Revenue Consumer Bank Commercial Bank Total Contract Revenue NONINTEREST INCOME Trust and investment services income $ 307 $ 58 $ 365 $ 311 $ 49 $ 360 Investment banking and debt placement fees — 316 316 — 367 367 Services charges on deposit accounts 170 109 279 145 102 247 Cards and payments income 120 49 169 135 187 322 Other noninterest income 8 — 8 5 2 7 Total revenue from contracts with customers $ 605 $ 532 $ 1,137 $ 596 $ 707 $ 1,303 Other noninterest income (a) $ 824 $ 874 Noninterest income from Other (b) 86 108 Total noninterest income $ 2,047 $ 2,285 (a) Noninterest income considered earned outside the scope of contracts with customers. (b) Other includes other segments that consists of corporate treasury, our principal investing unit, and various exit portfolios as well as reconciling items which primarily represents the unallocated portion of nonearning assets of corporate support functions. Charges related to the funding of these assets are part of net interest income and are allocated to the business segments through noninterest expense. Reconciling items also includes intercompany eliminations and certain items that are not allocated to the business segments because they do not reflect their normal operations. Refer to Note 20 (“Business Segment Reporting”) for more information. We had no material contract assets or contract liabilities as of September 30, 2022, and September 30, 2021.

Basis of Presentation and Acc_2

Basis of Presentation and Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation	The consolidated financial statements include the accounts of KeyCorp and its subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. Some previously reported amounts related to derivative valuations and reserves have been reclassified from Other Income to Corporate Services Income to conform to current reporting practices. The consolidated financial statements include any voting rights entities in which we have a controlling financial interest. In accordance with the applicable accounting guidance for consolidations, we consolidate a VIE if we have: (i) a variable interest in the entity; (ii) the power to direct activities of the VIE that most significantly affect the entity’s economic performance; and (iii) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE (i.e., we are considered to be the primary beneficiary). Variable interests can include equity interests, subordinated debt, derivative contracts, leases, service agreements, guarantees, standby letters of credit, loan commitments, and other contracts, agreements, and financial instruments. See Note 11 (“Variable Interest Entities”) for information on our involvement with VIEs. We use the equity method to account for unconsolidated investments in voting rights entities or VIEs if we have significant influence over the entity’s operating and financing decisions (usually defined as a voting or economic interest of 20% to 50%, but not controlling). Unconsolidated investments in voting rights entities or VIEs in which we have a voting or economic interest of less than 20% are carried at the cost measurement alternative or at fair value. Investments held by our registered broker-dealer and investment company subsidiaries (principal investing entities and Real Estate Capital line of business) are carried at fair value. The unaudited consolidated interim financial statements reflect all adjustments of a normal recurring nature and disclosures that are necessary for a fair presentation of the results for the interim periods presented. The results of operations for the interim period are not necessarily indicative of the results of operations to be expected for the full year. The interim financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in our 2021 Form 10-K.
Subsequent Events	In preparing these financial statements, subsequent events were evaluated through the time the financial statements were issued. Financial statements are considered issued when they are widely distributed to all shareholders and other financial statement users or filed with the SEC.
Accounting Guidance Adopted in 2022	Accounting Guidance Adopted in 2022 Standard Date of Adoption Description Effect on Financial Statements or Reference Rate Reform (Topic 848) March 12, 2020 through December 31, 2022 London Interbank Offered Rate (LIBOR), a reference rate presumed to capture bank funding costs, is being phased out and will no longer be published. This transition to alternate rates will impact, among other things, contracts that reference LIBOR. This ASU provides relief from cumbersome accounting consequences for certain qualifying contract modifications undertaken as a result of reference rate reform. Key has established an enterprise-wide program to identify and address all LIBOR related matters. We have elected to apply certain optional expedients for contract modifications and hedging relationships to derivative instruments impacted by the market-wide discounting transition. These optional expedients remove the requirement to remeasure contract modifications or dedesignate hedging relationships due to reference rate reform. We plan to elect any optional expedients for contract modifications and hedging relationships to any other financial instruments falling under the scope of reference rate reform. ASU 2020-06, Debt—Debt January 1, 2022 The ASU simplifies the accounting for convertible debt instruments by eliminating the legacy accounting models for convertible The guidance should be applied on a modified retrospective or retrospective basis. The adoption of this accounting guidance did not have a material effect on our financial condition or results of operations.

Basis of Presentation and Acc_3

Basis of Presentation and Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	Standard Date of Adoption Description Effect on Financial Statements or Reference Rate Reform (Topic 848) March 12, 2020 through December 31, 2022 London Interbank Offered Rate (LIBOR), a reference rate presumed to capture bank funding costs, is being phased out and will no longer be published. This transition to alternate rates will impact, among other things, contracts that reference LIBOR. This ASU provides relief from cumbersome accounting consequences for certain qualifying contract modifications undertaken as a result of reference rate reform. Key has established an enterprise-wide program to identify and address all LIBOR related matters. We have elected to apply certain optional expedients for contract modifications and hedging relationships to derivative instruments impacted by the market-wide discounting transition. These optional expedients remove the requirement to remeasure contract modifications or dedesignate hedging relationships due to reference rate reform. We plan to elect any optional expedients for contract modifications and hedging relationships to any other financial instruments falling under the scope of reference rate reform. ASU 2020-06, Debt—Debt January 1, 2022 The ASU simplifies the accounting for convertible debt instruments by eliminating the legacy accounting models for convertible The guidance should be applied on a modified retrospective or retrospective basis. The adoption of this accounting guidance did not have a material effect on our financial condition or results of operations.

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2022
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Earnings Per Common Share	Our basic and diluted earnings per Common Share are calculated as follows: Three months ended September 30, Nine months ended September 30, Dollars in millions, except per share amounts 2022 2021 2022 2021 EARNINGS Income (loss) from continuing operations $ 540 $ 643 $ 1,517 $ 1,985 Less: Net income (loss) attributable to noncontrolling interests — — — — Income (loss) from continuing operations attributable to Key 540 643 1,517 1,985 Less: Dividends on Preferred Stock 27 27 80 80 Income (loss) from continuing operations attributable to Key common shareholders 513 616 1,437 1,905 Income (loss) from discontinued operations, net of taxes 2 2 6 11 Net income (loss) attributable to Key common shareholders $ 515 $ 618 $ 1,443 $ 1,916 WEIGHTED-AVERAGE COMMON SHARES Weighted-average Common Shares outstanding (000) 924,594 942,446 924,085 955,069 Effect of Common Share options and other stock awards 7,861 10,077 8,679 9,712 Weighted-average Common Shares and potential Common Shares outstanding (000) (a) 932,455 952,523 932,764 964,781 EARNINGS PER COMMON SHARE Income (loss) from continuing operations attributable to Key common shareholders $ .55 $ .65 $ 1.55 $ 1.99 Income (loss) from discontinued operations, net of taxes — — .01 .01 Net income (loss) attributable to Key common shareholders (b) .55 .66 1.56 2.00 Income (loss) from continuing operations attributable to Key common shareholders — assuming dilution $ .55 $ .65 $ 1.54 $ 1.98 Income (loss) from discontinued operations, net of taxes — assuming dilution — — .01 .01 Net income (loss) attributable to Key common shareholders — assuming dilution (b) .55 .65 1.55 1.99 (a) Assumes conversion of Common Share options and other stock awards and/or convertible preferred stock, as applicable. (b) EPS may not foot due to rounding.

Loan Portfolio (Tables)

Loan Portfolio (Tables)	9 Months Ended
	Sep. 30, 2022
Loans Receivables [Abstract]
Schedule of Loans by Category	Dollars in millions September 30, 2022 December 31, 2021 Commercial and industrial (b) $ 56,971 $ 50,525 Commercial real estate: Commercial mortgage 16,400 14,244 Construction 2,349 1,996 Total commercial real estate loans 18,749 16,240 Commercial lease financing (c) 3,877 4,071 Total commercial loans 79,597 70,836 Residential — prime loans: Real estate — residential mortgage 20,838 15,756 Home equity loans 7,926 8,467 Total residential — prime loans 28,764 24,223 Consumer direct loans 6,803 5,753 Credit cards 977 972 Consumer indirect loans 50 70 Total consumer loans 36,594 31,018 Total loans (d) $ 116,191 $ 101,854 (a) Accrued interest of $274 million and $198 million at September 30, 2022, and December 31, 2021, respectively, presented in "other assets" on the Consolidated Balance Sheets is excluded from the amortized cost basis disclosed in this table. (b) Loan balances include $166 million and $139 million of commercial credit card balances at September 30, 2022, and December 31, 2021, respectively. (c) Commercial lease financing includes receivables held as collateral for a secured borrowing of $10 million and $16 million at September 30, 2022, and December 31, 2021, respectively. Principal reductions are based on the cash payments received from these related receivables. Additional information pertaining to this secured borrowing is included in Note 20 (“Long-Term Debt”) beginning on page 169 of our 2021 Form 10-K.

Asset Quality (Tables)

Asset Quality (Tables)	9 Months Ended
	Sep. 30, 2022
Credit Loss [Abstract]
Schedule of Financing Receivable, Allowance for Credit Loss	The changes in the ALLL by loan category for the periods indicated are as follows: Three months ended September 30, 2022: Dollars in millions June 30, 2022 Provision Charge-offs Recoveries September 30, 2022 Commercial and Industrial $ 503 $ 52 $ (49) $ 13 $ 519 Commercial real estate: Real estate — commercial mortgage 156 13 (3) 2 168 Real estate — construction 21 1 — — 22 Total commercial real estate loans 177 14 (3) 2 190 Commercial lease financing 29 — — 1 30 Total commercial loans 709 66 (52) 16 739 Real estate — residential mortgage 122 15 (1) 1 137 Home equity loans 95 (3) — 1 93 Consumer direct loans 112 4 (8) 4 112 Credit cards 59 7 (7) 2 61 Consumer indirect loans 2 (1) — 1 2 Total consumer loans 390 22 (16) 9 405 Total ALLL — continuing operations 1,099 88 (a) (68) 25 1,144 Discontinued operations 24 (2) (1) 1 22 Total ALLL — including discontinued operations $ 1,123 $ 86 $ (69) $ 26 $ 1,166 (a) Excludes a provision for losses on lending-related commitments of $21 million. Three months ended September 30, 2021: Dollars in millions June 30, 2021 Provision Charge-offs Recoveries September 30, 2021 Commercial and Industrial $ 499 $ (30) $ (27) $ 20 $ 462 Commercial real estate: Real estate — commercial mortgage 227 (44) — 1 184 Real estate — construction 35 (8) — — 27 Total commercial real estate loans 262 (52) — 1 211 Commercial lease financing 34 (7) (1) 6 32 Total commercial loans 795 (89) (28) 27 705 Real estate — residential mortgage 86 (1) 2 1 88 Home equity loans 136 (13) (1) 2 124 Consumer direct loans 115 (5) (7) 2 105 Credit cards 68 (4) (6) 1 59 Consumer indirect loans 20 5 (26) 4 3 Total consumer loans 425 (18) (38) 10 379 Total ALLL — continuing operations 1,220 (107) (a) (66) 37 1,084 Discontinued operations 30 (1) (1) 1 29 Total ALLL — including discontinued operations $ 1,250 $ (108) $ (67) $ 38 $ 1,113 (a) We had no losses on lending-related commitments. Nine months ended September 30, 2022: Dollars in millions December 31, 2021 Provision Charge-offs Recoveries September 30, 2022 Commercial and Industrial $ 445 $ 160 $ (118) $ 32 $ 519 Commercial real estate: Real estate — commercial mortgage 182 (8) (10) 4 168 Real estate — construction 29 (8) — 1 22 Total commercial real estate loans 211 (16) (10) 5 190 Commercial lease financing 32 (2) (2) 2 30 Total commercial loans 688 142 (130) 39 739 Real estate — residential mortgage 95 38 2 2 137 Home equity loans 110 (19) (1) 3 93 Consumer direct loans 105 25 (25) 7 112 Credit cards 61 17 (22) 5 61 Consumer indirect loans 2 — (2) 2 2 Total consumer loans 373 61 (48) 19 405 Total ALLL — continuing operations 1,061 203 (a) (178) 58 1,144 Discontinued operations 28 (4) (4) 2 22 Total ALLL — including discontinued operations $ 1,089 $ 199 $ (182) $ 60 $ 1,166 (a) Excludes a provision for losses on lending-related commitments of $34 million. Nine months ended September 30, 2021: Dollars in millions December 31, 2020 Provision Charge-offs Recoveries September 30, 2021 Commercial and Industrial $ 678 $ (135) $ (141) $ 60 $ 462 Commercial real estate: Real estate — commercial mortgage 327 (112) (39) 8 184 Real estate — construction 47 (20) — — 27 Total commercial real estate loans 374 (132) (39) 8 211 Commercial lease financing 47 (17) (5) 7 32 Total commercial loans 1,099 (284) (185) 75 705 Real estate — residential mortgage 102 (17) 1 2 88 Home equity loans 171 (44) (7) 4 124 Consumer direct loans 128 (7) (22) 6 105 Credit cards 87 (13) (21) 6 59 Consumer indirect loans 39 (12) (38) 14 3 Total consumer loans 527 (93) (87) 32 379 Total ALLL — continuing operations 1,626 (377) (a) (272) 107 1,084 Discontinued operations 36 (6) (3) 2 29 Total ALLL — including discontinued operations $ 1,662 $ (383) $ (275) $ 109 $ 1,113 (a) Excludes a provision for losses on lending-related commitments of $45 million.
Schedule of Significant Macroeconomic Variables of Loan Portfolios	The following table discloses key macroeconomic variables for each loan portfolio. Segment Portfolio Key Macroeconomic Variables (a) Commercial Commercial and industrial BBB corporate bond rate (spread), fixed investment, business bankruptcies, GDP, industrial production, and unemployment rate Commercial real estate Property & real estate price indices, unemployment rate, business bankruptcies, GDP Commercial lease financing BBB corporate bond rate (spread), GDP, and unemployment rate Consumer Real estate — residential mortgage GDP, home price index, unemployment rate, and 30 year mortgage rate Home equity Home price index, unemployment rate, and 30 year mortgage rate Consumer direct Unemployment rate and U.S. household income Consumer indirect New vehicle sales, used vehicle prices, and Unemployment rate Credit cards Unemployment rate and U.S. household income Discontinued operations Unemployment rate (a) Variables include all transformations and interactions with other risk drivers. Additionally, variables may have varying impacts at different points in the economic cycle.
Schedule of Financing Receivable Credit Quality Indicators	Credit Risk Profile by Creditworthiness Category and Vintage (a) As of September 30, 2022 Term Loans Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis Amortized Cost Basis by Origination Year and Internal Risk Rating Dollars in millions 2022 2021 2020 2019 2018 Prior Total Commercial and Industrial Risk Rating: Pass $ 7,572 $ 9,757 $ 3,729 $ 3,267 $ 1,862 $ 3,831 $ 24,796 $ 132 $ 54,946 Criticized (Accruing) 11 179 130 114 278 251 865 28 1,856 Criticized (Nonaccruing) 39 2 7 6 8 25 80 2 169 Total commercial and industrial 7,622 9,938 3,866 3,387 2,148 4,107 25,741 162 56,971 Real estate — commercial mortgage Risk Rating: Pass 4,162 4,264 1,014 1,912 827 2,695 927 50 15,851 Criticized (Accruing) — 24 26 85 91 242 46 1 515 Criticized (Nonaccruing) — — 1 2 2 25 4 — 34 Total real estate — commercial mortgage 4,162 4,288 1,041 1,999 920 2,962 977 51 16,400 Real estate — construction Risk Rating: Pass 475 747 516 365 168 49 1 — 2,321 Criticized (Accruing) — — 5 5 14 4 — — 28 Criticized (Nonaccruing) — — — — — — — — — Total real estate — construction 475 747 521 370 182 53 1 — 2,349 Commercial lease financing Risk Rating: Pass 697 869 558 506 199 991 — — 3,820 Criticized (Accruing) 1 1 10 19 13 11 — — 55 Criticized (Nonaccruing) — — — 1 1 — — — 2 Total commercial lease financing 698 870 568 526 213 1,002 — 3,877 Total commercial loans $ 12,957 $ 15,843 $ 5,996 $ 6,282 $ 3,463 $ 8,124 $ 26,719 $ 213 $ 79,597 As of December 31, 2021 Term Loans Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis Amortized Cost Basis by Origination Year and Internal Risk Rating Dollars in millions 2021 2020 2019 2018 2017 Prior Total Commercial and Industrial Risk Rating: Pass $ 11,675 $ 4,941 $ 4,040 $ 2,771 $ 1,777 $ 3,108 $ 20,406 $ 72 $ 48,790 Criticized (Accruing) 64 71 115 175 200 121 784 14 1,544 Criticized (Nonaccruing) 1 1 21 10 19 15 122 2 191 Total commercial and industrial 11,740 5,013 4,176 2,956 1,996 3,244 21,312 88 50,525 Real estate — commercial mortgage Risk Rating: Pass 4,923 1,197 2,137 1,168 612 2,787 803 53 13,680 Criticized (Accruing) 15 22 70 62 109 206 35 1 520 Criticized (Nonaccruing) — 1 1 5 — 31 6 — 44 Total real estate — commercial mortgage 4,938 1,220 2,208 1,235 721 3,024 844 54 14,244 Real estate — construction Risk Rating: Pass 495 565 530 223 92 32 2 — 1,939 Criticized (Accruing) — 4 5 43 4 — 1 — 57 Criticized (Nonaccruing) — — — — — — — — — Total real estate — construction 495 569 535 266 96 32 3 — 1,996 Commercial lease financing Risk Rating: Pass 1,039 748 675 301 309 927 — — 3,999 Criticized (Accruing) — 6 29 13 13 7 — — 68 Criticized (Nonaccruing) — — 1 1 1 1 — — 4 Total commercial lease financing 1,039 754 705 315 323 935 — — 4,071 Total commercial loans $ 18,212 $ 7,556 $ 7,624 $ 4,772 $ 3,136 $ 7,235 $ 22,159 $ 142 $ 70,836 (a) Accrued intere st of $197 million a nd $113 million as of September 30, 2022, and December 31, 2021, respectively, presented in Other Assets on the Consolidated Balance Sheets, was excluded from the amortized cost basis disclosed in these tables. Consumer Credit Exposure Credit Risk Profile by FICO Score and Vintage (a) As of September 30, 2022 Term Loans Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis Amortized Cost Basis by Origination Year and FICO Score Dollars in millions 2022 2021 2020 2019 2018 Prior Total Real estate — residential mortgage FICO Score: 750 and above $ 4,959 $ 8,248 $ 2,624 $ 643 $ 63 $ 1,015 $ — $ — $ 17,552 660 to 749 1,256 979 299 115 32 261 — — 2,942 Less than 660 35 38 18 15 15 139 — — 260 No Score 51 1 1 1 1 28 1 — 84 Total real estate — residential mortgage 6,301 9,266 2,942 774 111 1,443 1 — 20,838 Home equity loans FICO Score: 750 and above 138 879 760 214 76 647 2,303 403 5,420 660 to 749 85 302 204 83 33 196 961 129 1,993 Less than 660 9 31 22 17 10 84 294 38 505 No Score 4 — — — — 2 2 — 8 Total home equity loans 236 1,212 986 314 119 929 3,560 570 7,926 Consumer direct loans FICO Score: 750 and above 1,229 1,876 860 378 50 106 104 — 4,603 660 to 749 474 461 242 129 29 44 204 — 1,583 Less than 660 44 62 31 23 7 10 55 — 232 No Score 59 39 23 18 12 24 210 — 385 Total consumer direct loans 1,806 2,438 1,156 548 98 184 573 — 6,803 Credit cards FICO Score: 750 and above — — — — — — 493 — 493 660 to 749 — — — — — — 391 — 391 Less than 660 — — — — — — 92 — 92 No Score — — — — — — 1 — 1 Total credit cards — — — — — — 977 — 977 Consumer indirect loans FICO Score: 750 and above — 2 — — — 24 — — 26 660 to 749 — — — — — 17 — — 17 Less than 660 — — — — — 7 — — 7 No Score — — — — — — — — — Total consumer indirect loans — 2 — — — 48 — — 50 Total consumer loans $ 8,343 $ 12,918 $ 5,084 $ 1,636 $ 328 $ 2,604 $ 5,111 $ 570 $ 36,594 As of December 31, 2021 Term Loans Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Loans Amortized Cost Basis Amortized Cost Basis by Origination Year and FICO Score Dollars in millions 2021 2020 2019 2018 2017 Prior Total Real estate — residential mortgage FICO Score: 750 and above $ 7,906 $ 2,909 $ 777 $ 84 $ 126 $ 1,096 $ — $ — $ 12,898 660 to 749 1,686 351 169 39 25 308 — — 2,578 Less than 660 26 14 19 16 9 142 — — 226 No Score 18 — 1 1 3 30 1 — 54 Total real estate — residential mortgage 9,636 3,274 966 140 163 1,576 1 — 15,756 Home equity loans FICO Score: 750 and above 1,051 830 251 96 128 666 2,244 423 5,689 660 to 749 394 263 111 44 40 204 1,004 143 2,203 Less than 660 27 24 20 13 13 92 333 46 568 No Score — 2 — — — 2 3 — 7 Total home equity loans 1,472 1,119 382 153 181 964 3,584 612 8,467 Consumer direct loans FICO Score: 750 and above 1,799 1,129 517 65 17 129 109 — 3,765 660 to 749 612 295 174 46 10 45 212 — 1,394 Less than 660 45 33 27 11 3 12 60 — 191 No Score 68 40 29 17 10 21 218 — 403 Total consumer direct loans 2,524 1,497 747 139 40 207 599 — 5,753 Credit cards FICO Score: 750 and above — — — — — — 500 — 500 660 to 749 — — — — — — 387 — 387 Less than 660 — — — — — — 84 — 84 No Score — — — — — — 1 — 1 Total credit cards — — — — — — 972 — 972 Consumer indirect loans FICO Score: 750 and above 5 — — — — 30 — — 35 660 to 749 — — — — — 26 — — 26 Less than 660 — — — — — 9 — — 9 No Score — — — — — — — — — Total consumer indirect loans 5 — — — — 65 — — 70 Total consumer loans $ 13,637 $ 5,890 $ 2,095 $ 432 $ 384 $ 2,812 $ 5,156 $ 612 $ 31,018 (a) Accrued intere st of $77 million and $85 million as of September 30, 2022 and December 31, 2021, respectively, presented in Other Assets on the Consolidated Balance Sheets, was excluded from the amortized cost basis disclosed in this table.
Schedule of Past Due Loans Including Current Loans	The following aging analysis of past due and current loans as of September 30, 2022, and December 31, 2021, provides further information regarding Key’s credit exposure. Aging Analysis of Loan Portfolio (a) September 30, 2022 Current 30-59 Days Past Due (b) 60-89 Days Past Due (b) 90 and Greater Days Past Due (b) Non-performing Total Past Total Loans (c) Dollars in millions LOAN TYPE Commercial and industrial $ 56,674 $ 75 $ 31 $ 22 $ 169 $ 297 $ 56,971 Commercial real estate: Commercial mortgage 16,353 4 1 8 34 47 16,400 Construction 2,348 — — 1 — 1 2,349 Total commercial real estate loans 18,701 4 1 9 34 48 18,749 Commercial lease financing 3,857 16 1 1 2 20 3,877 Total commercial loans $ 79,232 $ 95 $ 33 $ 32 $ 205 $ 365 $ 79,597 Real estate — residential mortgage $ 20,759 $ 9 $ 3 $ 1 $ 66 $ 79 $ 20,838 Home equity loans 7,787 19 4 4 112 139 7,926 Consumer direct loans 6,779 11 6 4 3 24 6,803 Credit cards 961 4 3 6 3 16 977 Consumer indirect loans 49 — — — 1 1 50 Total consumer loans $ 36,335 $ 43 $ 16 $ 15 $ 185 $ 259 $ 36,594 Total loans $ 115,567 $ 138 $ 49 $ 47 $ 390 $ 624 $ 116,191 (a) Amounts in table represent amortized cost and exclude loans held for sale. (b) Accrued inter est of $274 million p resented in Other Assets on the Consolidated Balance Sheets is excluded from the amortized cost basis disclosed in this table. (c) Net of unearned income, net of deferred fees and costs, and unamortized discounts and premiums. December 31, 2021 Current 30-59 Days Past Due (b) 60-89 Days Past Due (b) 90 and Greater Days Past Due (b) Non-performing Loans Total Past Due and Non-performing Loans Total Loans (c) Dollars in millions LOAN TYPE Commercial and industrial $ 50,226 $ 19 $ 49 $ 40 $ 191 $ 299 $ 50,525 Commercial real estate: Commercial mortgage 14,174 10 9 7 44 70 14,244 Construction 1,978 — 17 1 — 18 1,996 Total commercial real estate loans 16,152 10 26 8 44 88 16,240 Commercial lease financing 4,061 6 — — 4 10 4,071 Total commercial loans $ 70,439 $ 35 $ 75 $ 48 $ 239 $ 397 $ 70,836 Real estate — residential mortgage $ 15,669 $ 7 $ 3 $ 5 $ 72 $ 87 $ 15,756 Home equity loans 8,299 21 6 6 135 168 8,467 Consumer direct loans 5,736 8 2 3 4 17 5,753 Credit cards 956 4 3 6 3 16 972 Consumer indirect loans 68 1 — — 1 2 70 Total consumer loans $ 30,728 $ 41 $ 14 $ 20 $ 215 $ 290 $ 31,018 Total loans $ 101,167 $ 76 $ 89 $ 68 $ 454 $ 687 $ 101,854 (a) Amounts in table represent amortized cost and exclude loans held for sale. (b) Accrued interest of $198 million presented in Other Assets on the Consolidated Balance Sheets is excluded from the amortized cost basis disclosed in this table. (c) Net of unearned income, net of deferred fees and costs, and unamortized discounts and premiums.
Schedule of Post-Modification Outstanding Recorded Investment by Concession Type for Our Commercial Accruing and Nonaccruing TDRs	The following table shows the post-modification outstanding recorded investment by concession type for our commercial and consumer accruing and nonaccruing TDRs that occurred during the periods indicated: Three Months Ended September 30, Nine Months Ended September 30, Dollars in millions 2022 2021 2022 2021 Commercial loans: Extension of Maturity Date $ 40 $ — $ 40 $ 5 Payment or Covenant Modification/Deferment — — 1 7 Bankruptcy Plan Modification — — — — Increase in new commitment or new money — — — — Total $ 40 $ — $ 41 $ 12 Consumer loans: Interest rate reduction $ 5 $ 3 $ 10 $ 6 Other 4 12 17 18 Total $ 9 $ 15 $ 27 $ 24 Total TDRs $ 49 $ 15 $ 68 $ 36
Schedule of Post-Modification Outstanding Recorded Investment, Accruing And Nonaccruing TDRs	The following table summarizes the change in the post-modification outstanding recorded investment of our accruing and nonaccruing TDRs during the periods indicated: Three Months Ended September 30, Nine Months Ended September 30, Dollars in millions 2022 2021 2022 2021 Balance at beginning of the period $ 216 $ 334 $ 220 $ 363 Additions 48 17 70 98 Payments (10) (81) (34) (162) Charge-offs — — (2) (29) Balance at end of period $ 254 $ 270 $ 254 $ 270
Schedule of Breakdown of Nonperforming TDRs by Loans Category	A further breakdown of TDRs included in nonperforming loans by loan category for the periods indicated are as follows: September 30, 2022 December 31, 2021 Number of Loans Pre-modification Outstanding Recorded Investment Post-modification Outstanding Recorded Investment Number of Loans Pre-modification Outstanding Recorded Investment Post-modification Outstanding Recorded Investment Dollars in millions LOAN TYPE Nonperforming: Commercial and industrial 37 $ 64 $ 52 36 $ 30 $ 14 Commercial real estate: Commercial mortgage 4 50 23 3 50 25 Total commercial real estate loans 4 50 23 3 50 25 Total commercial loans 41 114 75 39 80 39 Real estate — residential mortgage 234 29 26 220 26 24 Home equity loans 478 32 28 531 36 31 Consumer direct loans 180 2 2 207 3 2 Credit cards 343 2 2 360 2 2 Consumer indirect loans 17 2 1 23 1 1 Total consumer loans 1,252 67 59 1,341 68 60 Total nonperforming TDRs 1,293 181 134 1,380 148 99 Prior-year accruing: (a) Commercial and industrial 17 1 — 11 — — Commercial real estate Commercial mortgage — — — 1 — — Total commercial real estate loans — — — 1 — — Total commercial loans 17 1 — 12 — — Real estate — residential mortgage 443 41 35 455 39 33 Home equity loans 1,563 97 74 1,628 97 75 Consumer direct loans 257 4 3 236 5 3 Credit cards 595 4 2 579 4 2 Consumer indirect loans 107 12 6 139 15 8 Total consumer loans 2,965 158 120 3,037 160 121 Total prior-year accruing TDRs 2,982 159 120 3,049 160 121 Total TDRs 4,275 $ 340 $ 254 4,429 $ 308 $ 220 (a) All TDRs that were restructured prior to January 1, 2022, and January 1, 2021, are fully accruing.
Schedule of Changes in Liability for Credit Losses on Off-Balance Sheet Exposures	Changes in the liability for credit losses on off balance sheet exposures are summarized as follows: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Balance at beginning of period $ 173 $ 152 160 197 Provision (credit) for losses on off balance sheet exposures 21 — 34 (45) Balance at end of period $ 194 $ 152 $ 194 $ 152

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis	The following tables present these assets and liabilities at September 30, 2022, and December 31, 2021. September 30, 2022 December 31, 2021 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Dollars in millions ASSETS MEASURED ON A RECURRING BASIS Trading account assets: U.S. Treasury, agencies and corporations $ — $ 847 $ — $ 847 $ — $ 530 $ — $ 530 States and political subdivisions — 68 — 68 — 96 — 96 Other mortgage-backed securities — 133 — 133 — 44 — 44 Other securities 2 12 — 14 — 13 — 13 Total trading account securities 2 1,060 — 1,062 — 683 — 683 Commercial loans — 6 — 6 — 18 — 18 Total trading account assets 2 1,066 — 1,068 — 701 — 701 Securities available for sale: U.S. Treasury, agencies and corporations — 9,386 — 9,386 — 9,472 — 9,472 States and political subdivisions — — — — — — — — Agency residential collateralized mortgage obligations — 17,237 — 17,237 — 21,119 — 21,119 Agency residential mortgage-backed securities — 3,985 — 3,985 — 5,122 — 5,122 Agency commercial mortgage-backed securities — 9,391 — 9,391 — 9,651 — 9,651 Other securities — 1 — 1 — — — — Total securities available for sale $ — $ 40,000 $ — $ 40,000 $ — $ 45,364 $ — $ 45,364 Other investments: Principal investments: Direct $ — $ — $ 1 $ 1 $ — $ — $ 1 $ 1 Indirect (measured at NAV) (a) — — — 36 — — — 45 Total principal investments — — 1 37 — — 1 46 Equity investments: Direct 3 — 2 5 24 — 9 33 Direct (measured at NAV) (a) — — — 29 — — — 21 Indirect (measured at NAV) (a) — — — 4 — — — 5 Total equity investments 3 — 2 38 24 — 9 59 Total other investments 3 — 3 75 24 — 10 105 Loans, net of unearned income (residential) — — 9 9 — — 11 11 Loans held for sale (residential) — 61 — 61 — 281 — 281 Derivative assets: Interest rate — 227 (8) 219 — 774 33 807 Foreign exchange 180 45 — 225 $ 71 10 — 81 Commodity — 1,857 — 1,857 — 1,330 — 1,330 Credit — — — — — — 1 1 Other — 20 — 20 — 22 5 27 Derivative assets 180 2,148 (8) 2,321 71 2,136 39 2,246 Netting adjustments (b) — — — (720) — — — (284) Total derivative assets 180 2,148 (8) 1,601 71 2,136 39 1,962 Total assets on a recurring basis at fair value $ 185 $ 43,275 $ 4 $ 42,814 $ 95 $ 48,482 $ 60 $ 48,424 LIABILITIES MEASURED ON A RECURRING BASIS Bank notes and other short-term borrowings: Short positions $ 143 $ 683 $ — $ 826 $ 75 $ 513 $ — $ 588 Derivative liabilities: Interest rate — 1,429 — 1,429 — 253 — 253 Foreign exchange 172 45 — 217 66 10 — 76 Commodity — 1,838 — 1,838 — 1,335 — 1,335 Credit — — 4 4 — 5 7 12 Other — 34 3 37 — 11 — 11 Derivative liabilities 172 3,346 7 3,525 66 1,614 7 1,687 Netting adjustments (b) — — — (1,925) — — — (1,526) Total derivative liabilities 172 3,346 7 1,600 66 1,614 7 161 Total liabilities on a recurring basis at fair value $ 315 $ 4,029 $ 7 $ 2,426 $ 141 $ 2,127 $ 7 $ 749 (a) Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheet. (b) Netting adjustments represent the amounts recorded to convert our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The net basis takes into account the impact of bilateral collateral and master netting agreements that allow us to settle all derivative contracts with a single counterparty on a net basis and to offset the net derivative position with the related cash collateral. Total derivative assets and liabilities include these netting adjustments.
Schedule of Fair Value of Direct and Indirect Investments, Related Unfunded Commitments and Financial Support Provided	The following table presents the fair value of our direct and indirect principal investments and related unfunded commitments at September 30, 2022, as well as financial support provided for the three and nine months ended September 30, 2022, and September 30, 2021. Financial support provided Three months ended September 30, Nine months ended September 30, September 30, 2022 2022 2021 2022 2021 Dollars in millions Fair Value Unfunded Funded Funded Other Funded Funded Other Funded Funded Other Funded Funded Other INVESTMENT TYPE Direct investments $ 1 $ — $ — $ — $ — $ — $ — $ — $ — $ — Indirect investments (measured at NAV) (a) 36 10 — — — — — — 4 — Total $ 37 $ 10 $ — $ — $ — $ — $ — $ — $ 4 $ — (a) Our indirect investments consist of buyout funds, venture capital funds, and fund of funds. These investments are generally not redeemable. Instead, distributions are received through the liquidation of the underlying investments of the fund. An investment in any one of these funds typically can be sold only with the approval of the fund’s general partners. At September 30, 2022, no significant liquidation of the underlying investments has been communicated to Key. The purpose of funding our capital commitments to these investments is to allow the funds to make additional follow-on investments and pay fund expenses until the fund dissolves. We, and all other investors in the fund, are obligated to fund the full amount of our respective capital commitments to the fund based on our and their respective ownership percentages, as noted in the applicable Limited Partnership Agreement.
Schedule of Change in Fair Values of Level 3 Financial Instruments	The following table shows the components of the change in the fair values of our Level 3 financial instruments measured at fair value on a recurring basis for the three and nine months ended September 30, 2022, and September 30, 2021. Dollars in millions Beginning of Period Balance Gains (Losses) Included in Other Comprehensive Income Gains (Losses) Included in Earnings Purchases Sales Settlements Transfers Other Transfers into Level 3 Transfers out of Level 3 End of Period Balance Unrealized Gains (Losses) Included in Earnings Nine months ended September 30, 2022 Other investments Principal investments Direct (a) $ 1 $ — $ — $ — $ — $ — $ — $ — $ — $ 1 $ — Equity investments Direct (a) 9 — (3) — (4) — — — — 2 (3) Loans, net of unearned income (residential) 11 — (2) — (1) — 1 — — 9 — Derivative instruments (b) Interest rate 33 — (71) (c) 1 (2) — — 35 (d) (4) (d) (8) — Credit (6) — 2 (c) — — — — — — (4) — Other (e) 5 — — (c) — — — (8) — — (3) — Three months ended September 30, 2022 Other investments Principal investments Direct (a) $ 1 $ — $ — $ — $ — $ — $ — $ — $ — $ 1 $ — Other indirect — — — — — — — — — — — Equity investments Direct (a) 6 — — — (4) — — — — 2 — Loans held for sale (residential) — — — — — — — — — — — Loans, net of unearned income (residential) 11 — (1) — (1) — — — — 9 — Derivative instruments (b) Interest rate (3) — (16) (c) (3) — — — 5 (d) 9 (d) (8) — Credit (3) — — (c) — — — (1) — — (4) — Other (e) 1 — 1 (c) — — — (5) — — (3) — Dollars in millions Beginning of Period Balance Gains (Losses) Included in Other Comprehensive Income Gains (Losses) Included in Earnings Purchases Sales Settlements Transfers Other Transfers into Level 3 Transfers out of Level 3 End of Period Balance Unrealized Gains (Losses) Included in Earnings Nine months ended September 30, 2021 Securities available for sale Other securities $ 13 $ 9 $ — $ — $ — $ — $ — $ — $ — $ 22 $ — Other investments Principal investments Direct (a) 1 — — — — — — — — 1 — Equity investments Direct (a) 13 — (1) — — — — — (3) 9 (1) Loans held for sale (residential) — — — — (1) — 1 — — — — Loans, net of unearned income (residential) 11 — — — (2) — 1 — — 10 — Derivative instruments (b) Interest rate 56 — (20) (c) 1 (7) — — 21 (d) (17) (d) 34 — Credit (10) — 4 (c) — — — — (6) — Other (e) 32 — (3) (c) — — — (23) — — 6 — Three months ended September 30, 2021 Securities available for sale Other securities $ 22 $ — $ — $ — $ — $ — $ — $ — $ — $ 22 $ — Other investments Principal investments Direct (a) 1 — — — — — — — — 1 — Equity investments Direct (a) 9 — 9 — Loans held for sale (residential) — — — — $ — — $ — — — — — Loans, net of unearned income (residential) 11 — — — — — — — — 10 — Derivative instruments (b) Interest rate 35 — (5) (c) $ 1 (1) 9 (d) (5) (d) 34 Credit (5) — — (c) (1) — — — — — (6) — Other (e) 13 — — (c) — — (7) — — 6 — (a) Realized and unrealized gains and losses on principal investments and other equity investments are reported in “other income” on the income statement. (b) Amounts represent Level 3 derivative assets less Level 3 derivative liabilities. (c) Realized and unrealized gains and losses on derivative instruments are reported in “corporate services income” and “other income” on the income statement. (d) Certain instruments previously classified as Level 2 were transferred to Level 3 because Level 3 unobservable inputs became significant. Certain derivatives previously classified as Level 3 were transferred to Level 2 because Level 3 unobservable inputs became less significant. (e) Amounts represent Level 3 interest rate lock commitments.
Schedule of Assets and Liabilities Measured at Fair Value on Nonrecurring Basis	The following table presents our assets measured at fair value on a nonrecurring basis at September 30, 2022, and December 31, 2021: September 30, 2022 December 31, 2021 Dollars in millions Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total ASSETS MEASURED ON A NONRECURRING BASIS Collateral-dependent loans $ — $ — $ 69 $ 69 $ — $ — $ 28 $ 28 Loans held for sale — — — — — — — — Accrued income and other assets — — 17 17 — — 80 80 Total assets on a nonrecurring basis at fair value $ — $ — $ 86 $ 86 $ — $ — $ 108 $ 108
Schedule of Quantitative Information about Level 3 Fair Value Measurements	The range and weighted-average of the significant unobservable inputs used to fair value our material Level 3 recurring and nonrecurring assets at September 30, 2022, and December 31, 2021, along with the valuation techniques used, are shown in the following table: Level 3 Asset (Liability) Valuation Technique Significant Unobservable Input Range (Weighted-Average) (a), (b) Dollars in millions September 30, 2022 December 31, 2021 September 30, 2022 December 31, 2021 Recurring Loans, net of unearned income (residential) $ 9 $ 11 Market comparable pricing Comparability factor 53.47 - 85.89% (80.88%) 64.50-97.30% (94.24%) Derivative instruments: Interest rate (8) 33 Discounted cash flows Probability of default .02 - 100% (14.90%) .02 - 100% (8.88%) Loss given default 0 - 1 (.499) 0 - 1 (.500) Insignificant level 3 assets, net of liabilities (c) (4) 9 Nonrecurring Collateral-dependent loans 69 28 Fair value of collateral Discount rate 0 - 85.00% (26.00%) 0 - 10.00% (8.00%) Accrued income and other assets: OREO and other Level 3 assets (d) 17 13 Appraised value Appraised value N/M N/M (a) The weighted average of significant unobservable inputs is calculated using a weighting relative to fair value. (b) For significant unobservable inputs with no range, a single figure is reported to denote the single quantitative factor used. (c) Represents the aggregate amount of Level 3 assets and liabilities measured at fair value on a recurring basis that are individually and in the aggregate insignificant. The amount includes certain equity investments and certain financial derivative assets and liabilities. (d) Excludes $67 million pertaining to servicing assets at December 31, 2021. No servicing assets required nonrecurring valuation adjustments at September 30, 2022. Refer to Note 8 (“Mortgage Servicing Assets”) for significant unobservable inputs pertaining to these assets.
Schedule of Fair Value Disclosures of Financial Instruments	The Levels in the fair value hierarchy ascribed to our financial instruments and the related carrying amounts at September 30, 2022, and December 31, 2021, are shown in the following tables. Assets and liabilities are further arranged by measurement category. September 30, 2022 Fair Value Dollars in millions Carrying Amount Level 1 Level 2 Level 3 Measured at NAV Netting Adjustment Total ASSETS (by measurement category) Fair value - net income Trading account assets (b) $ 1,068 $ 2 $ 1,066 $ — $ — $ — $ 1,068 Other investments (b) 1,272 3 — 1,199 70 — 1,272 Loans, net of unearned income (residential) (d) 9 — — 9 — — 9 Loans held for sale (residential) (b) 61 — 61 — — — 61 Derivative assets - trading (b) 1,535 181 2,171 (8) — (809) (f) 1,535 Fair value - OCI Securities available for sale (b) 40,000 — 40,000 — — — 40,000 Derivative assets - hedging (b)(g) 66 — (23) — — 89 (f) 66 Amortized cost Held-to-maturity securities (c) 8,163 — 7,596 — — — 7,596 Loans, net of unearned income (d) 115,038 — — 109,738 — — 109,738 Loans held for sale (b) 987 — — 987 — — 987 Other Cash and other short-term investments (a) 5,613 5,613 — — — — 5,613 LIABILITIES (by measurement category) Fair value - net income Derivative liabilities - trading (b) $ 1,590 $ 172 $ 3,321 $ 7 $ — $ (1,910) (f) $ 1,590 Fair value - OCI Derivative liabilities - hedging (b)(g) 10 — 25 — — (15) (f) 10 Amortized cost Time deposits (e) 5,847 — 5,837 — — — 5,837 Short-term borrowings (a) 8,800 143 8,657 — — — 8,800 Long-term debt (e) 18,257 10,960 6,638 — — — 17,598 Other Deposits with no stated maturity (a) 139,008 — 139,008 — — — 139,008 December 31, 2021 Fair Value Dollars in millions Carrying Amount Level 1 Level 2 Level 3 Measured at NAV Netting Adjustment Total ASSETS (by measurement category) Fair value - net income Trading account assets (b) $ 701 $ — $ 701 $ — $ — $ — $ 701 Other investments (b) 639 24 — 543 72 — 639 Loans, net of unearned income (residential) (d) 11 — — 11 — — 11 Loans held for sale (residential) (b) 281 — 281 — — — 281 Derivative assets - trading (b) 1,887 $ 71 2,096 40 — (320) (f) 1,887 Fair value - OCI Securities available for sale (b) 45,364 — 45,364 — — — 45,364 Derivative assets - hedging (b)(g) 75 — 39 — — 36 (f) 75 Amortized cost Held-to-maturity securities (c) 7,539 — 7,665 — — — 7,665 Loans, net of unearned income (d) 100,782 — — 100,428 — — 100,428 Loans held for sale (b) 2,448 — — 2,448 — — 2,448 Other Short-term investments - U.S. Treasury Bills (b) — — — — — — — Cash and other short-term investments (a) 11,923 11,923 — — — — 11,923 LIABILITIES (by measurement category) Fair value - net income Derivative liabilities - trading (b) $ 157 $ 66 $ 1,610 $ 7 $ — $ (1,526) (f) $ 157 Fair value - OCI Derivative liabilities - hedging (b)(g) 4 — 4 — — — (f) 4 Amortized cost Time deposits (e) 3,858 — 3,866 — — — 3,866 Short-term borrowings (a) 761 75 686 — — — 761 Long-term debt (e) 12,042 11,813 705 — — — 12,518 Other Deposits with no stated maturity (a) 148,714 — 148,714 — — — 148,714 Valuation Methods and Assumptions (a) Fair value equals or approximates carrying amount. The fair value of deposits with no stated maturity does not take into consideration the value ascribed to core deposit intangibles. (b) Information pertaining to our methodology for measuring the fair values of these assets and liabilities is included in the sections entitled “Qualitative Disclosures of Valuation Techniques” and “Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis” within our 2021 Form 10-K Note 6 (“Fair Value Measurements”). Investments accounted for under the cost method (or cost less impairment adjusted for observable price changes for certain equity investments) are classified as Level 3 assets. These investments are not actively traded in an open market as sales for these types of investments are rare. The carrying amount of the investments carried at cost are adjusted for declines in value if they are considered to be other-than-temporary (or due to observable orderly transactions of the same issuer for equity investments eligible for the cost less impairment measurement alternative). These adjustments are included in “other income” on the income statement. (c) Fair values of held-to-maturity securities are determined by using models that are based on security-specific details, as well as relevant industry and economic factors. The most significant of these inputs are quoted market prices, interest rate spreads on relevant benchmark securities, and certain prepayment assumptions. We review the valuations derived from the models to ensure that they are reasonable and consistent with the values placed on similar securities traded in the secondary markets. (d) The fair value of loans is based on the present value of the expected cash flows. The projected cash flows are based on the contractual terms of the loans, adjusted for prepayments and use of a discount rate based on the relative risk of the cash flows, taking into account the loan type, maturity of the loan, liquidity risk, servicing costs, and a required return on debt and capital. In addition, an incremental liquidity discount is applied to certain loans, using historical sales of loans during periods of similar economic conditions as a benchmark. The fair value of loans includes lease financing receivables at their aggregate carrying amount, which is equivalent to their fair value. (e) Fair values of time deposits and long-term debt classified as Level 2 are based on discounted cash flows utilizing relevant market inputs. (f) Netting adjustments represent the amounts recorded to convert our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The net basis takes into account the impact of bilateral collateral and master netting agreements that allow us to settle all derivative contracts with a single counterparty on a net basis and to offset the net derivative position with the related cash collateral. Total derivative assets and liabilities include these netting adjustments. (g) Derivative assets-hedging and derivative liabilities-hedging includes both cash flow and fair value hedges. Additional information regarding our accounting policies for cash flow and fair value hedges is provided in Note 1 (“Summary of Significant Accounting Policies”) under the heading “Derivatives and Hedging” beginning on page 113 of our 2021 Form 10-K.

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Schedule of Details of Securities	The amortized cost, unrealized gains and losses, and approximate fair value of our securities available for sale and held-to-maturity securities are presented in the following tables. Gross unrealized gains and losses represent the difference between the amortized cost and the fair value of securities on the balance sheet as of the dates indicated. Accordingly, the amount of these gains and losses may change in the future as market conditions change. September 30, 2022 December 31, 2021 Dollars in millions Amortized Cost (a) Gross Unrealized Gains Gross Unrealized Losses Fair Value Amortized Cost (b) Gross Unrealized Gains Gross Unrealized Losses Fair Value SECURITIES AVAILABLE FOR SALE U.S. Treasury, agencies, and corporations $ 10,062 $ — $ 676 $ 9,386 $ 9,573 $ — $ 101 $ 9,472 Agency residential collateralized mortgage obligations 20,706 — 3,469 17,237 21,430 99 410 21,119 Agency residential mortgage-backed securities 4,742 — 757 3,985 5,137 37 52 5,122 Agency commercial mortgage-backed securities 10,780 2 1,391 9,391 9,753 188 290 9,651 Other securities 1 — — 1 — — — — Total securities available for sale $ 46,291 $ 2 $ 6,293 $ 40,000 $ 45,893 $ 324 $ 853 $ 45,364 HELD-TO-MATURITY SECURITIES Agency residential collateralized mortgage obligations $ 3,818 $ — $ 251 $ 3,567 $ 2,196 $ 33 $ — $ 2,229 Agency residential mortgage-backed securities 185 — 18 167 164 6 — 170 Agency commercial mortgage-backed securities 2,524 1 190 2,335 2,678 118 — 2,796 Asset-backed securities (c) 1,621 — 108 1,513 2,485 — 31 2,454 Other securities 15 — 1 14 16 — — 16 Total held-to-maturity securities $ 8,163 $ 1 568 $ 7,596 $ 7,539 $ 157 $ 31 $ 7,665 (a) Amortized cost amounts exclude accrued interes t receivable which is recorded within Other Assets on the balance sheet. At September 30, 2022, accrued interest receivable on available for sale securities and held-to-maturity securities totaled $66 million and $18 million, respectively. (b) Amortized cost amounts exclude accrued interes t receivable which is recorded within Other Assets on the balance sheet. At December 31, 2021, accrued interest receivable on available for sale securities and held-to-maturity securities totaled $59 million and $15 million , respectively. (c) Includes $1.6 billion of securities as of September 30, 2022, and $2.5 billion of securities as of December 31, 2021, related to the purchase of senior notes from a securitization collateralized by sold indirect auto loans.
Schedule of Securities in an Unrealized Loss Position	The following table summarizes securities in an unrealized loss position for which an allowance for credit losses has not been recorded as of September 30, 2022, and December 31, 2021. Duration of Unrealized Loss Position Less than 12 Months 12 Months or Longer Total Dollars in millions Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses September 30, 2022 Securities available for sale: U.S Treasury, agencies, and corporations $ 1,197 $ 94 $ 8,189 $ 582 $ 9,386 $ 676 Agency residential collateralized mortgage obligations 9,673 1,489 7,562 1,980 17,235 3,469 Agency residential mortgage-backed securities 1,584 219 2,398 538 3,982 757 Agency commercial mortgage-backed securities 5,221 383 4,104 1,008 9,325 1,391 Held-to-maturity securities: Agency residential collateralized mortgage obligations 3,407 250 9 1 3,416 251 Agency residential mortgage-backed securities 167 18 — — 167 18 Agency commercial mortgage-backed securities 2,324 190 — — 2,324 190 Asset-backed securities 1,511 108 1 — (a) 1,512 108 Other securities 7 — (a) 3 1 10 1 Total securities in an unrealized loss position $ 25,091 $ 2,751 $ 22,266 $ 4,110 $ 47,357 $ 6,861 December 31, 2021 Securities available for sale: U.S. Treasury, agencies, and corporations $ 9,078 $ 98 $ 243 $ 3 $ 9,321 $ 101 Agency residential collateralized mortgage obligations 12,603 315 1,255 95 13,858 410 Agency residential mortgage-backed securities 3,793 49 178 3 3,971 52 Agency commercial mortgage-backed securities 1,645 75 3,834 215 5,479 290 Held-to-maturity securities: Agency residential collateralized mortgage obligations 96 — (b) — — 96 — Asset-backed securities 2,450 31 1 — (b) 2,451 31 Other securities 15 — (b) — — 15 — Total securities in an unrealized loss position $ 29,680 $ 568 $ 5,511 $ 316 $ 35,191 $ 884 (a) At September 30, 2022, gross unrealized losses totaled less than $1 million for other securities held-to-maturity with a loss duration of less than 12 months and asset-backed securities held-to-maturity with a loss duration of 12 months or longer. (b) At December 31, 2021, gross unrealized losses totaled less than $1 million for other securities held-to-maturity and agency residential collateralized mortgage obligations held-to-maturity with a loss duration of less than 12 months. At December 31, 2021, gross unrealized losses totaled less than $1 million for asset backed securities held-to-maturity with a loss duration greater than 12 months or longer.
Schedule of Securities by Maturity	The following table shows our securities by remaining maturity. CMOs, other mortgage-backed securities, and asset-backed securities in the available for sale portfolio and held-to-maturity portfolio are presented based on their expected average lives. The remaining securities, in both the available-for-sale and held-to-maturity portfolios, are presented based on their remaining contractual maturity. Actual maturities may differ from expected or contractual maturities since borrowers have the right to prepay obligations with or without prepayment penalties. September 30, 2022 Securities Available for Sale Held to Maturity Securities Dollars in millions Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 620 $ 599 $ 24 $ 23 Due after one through five years 16,918 15,566 4,526 4,203 Due after five through ten years 21,439 17,962 2,500 2,303 Due after ten years 7,314 5,873 1,113 1,067 Total $ 46,291 $ 40,000 $ 8,163 $ 7,596

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Values, Volume of Activity and Gain (Loss) Information Related to Derivative Instruments	The following table summarizes the fair values of our derivative instruments on a gross and net basis as of September 30, 2022, and December 31, 2021. The derivative asset and liability balances are presented on a gross basis, prior to the application of bilateral collateral and master netting agreements, but after the variation margin payments with central clearing organizations have been applied as settlement, as applicable. Total derivative assets and liabilities are adjusted to take into account the impact of legally enforceable master netting agreements that allow us to settle all derivative contracts with a single counterparty on a net basis and to offset the net derivative position with the related cash collateral. Securities collateral related to legally enforceable master netting agreements is not offset on the balance sheet. Our derivative instruments are included in “accrued income and other assets” or “accrued expenses and other liabilities” on the balance sheet, as follows: September 30, 2022 December 31, 2021 Fair Value (a) Fair Value (a) Dollars in millions Notional Amount Derivative Assets Derivative Liabilities Notional Amount Derivative Assets Derivative Liabilities Derivatives designated as hedging instruments: Interest rate $ 40,624 $ (22) $ 25 $ 38,654 $ 39 $ 4 Derivatives not designated as hedging instruments: Interest rate 78,319 241 1,404 72,088 768 249 Foreign exchange 8,405 225 217 9,073 81 76 Commodity 17,016 1,857 1,838 14,151 1,330 1,335 Credit 116 — 4 465 1 12 Other (b) 1,484 20 37 3,330 27 11 Total 105,340 2,343 3,500 99,107 2,207 1,683 Netting adjustments (c) — (720) (1,925) — (284) (1,526) Net derivatives in the balance sheet 145,964 1,601 1,600 137,761 1,962 161 Other collateral (d) — — (12) — (1) — Net derivative amounts $ 145,964 $ 1,601 $ 1,588 $ 137,761 $ 1,961 $ 161 (a) We take into account bilateral collateral and master netting agreements that allow us to settle all derivative contracts held with a single counterparty on a net basis, and to offset the net derivative position with the related cash collateral when recognizing derivative assets and liabilities. As a result, we could have derivative contracts with negative fair values included in derivative assets and contracts with positive fair values included in derivative liabilities. (b) Other derivatives include interest rate lock commitments related to our residential and commercial banking activities, forward sale commitments related to our residential mortgage banking activities, forward purchase and sales contracts consisting of contractual commitments associated with “to be announced” securities and when-issued securities, and other customized derivative contracts. (c) Netting adjustments represent the amounts recorded to convert our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. (d) Other collateral represents the amount that cannot be used to offset our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The other collateral consists of securities and is exchanged under bilateral collateral and master netting agreements that allow us to offset the net derivative position with the related collateral. The application of the other collateral cannot reduce the net derivative position below zero. Therefore, excess other collateral, if any, is not reflected above.
Schedule of Pre-Tax Net Gains (Losses) on Fair Value Hedges	The following tables summarize the amounts that were recorded on the balance sheet as of September 30, 2022, and December 31, 2021, related to cumulative basis adjustments for fair value hedges. September 30, 2022 Dollars in millions Balance sheet line item in which the hedge item is included Carrying amount of hedged item (a) Hedge accounting basis adjustment (b) Interest rate contracts Long-term debt $ 9,409 $ (606) Interest rate contracts Securities Available for Sale (c) 405 51 December 31, 2021 Balance sheet line item in which the hedge item is included Carrying amount of hedged item (a) Hedge accounting basis adjustment (b) Interest rate contracts Long-term debt $ 7,553 $ 138 Interest rate contracts Securities Available for Sale (c) 6,280 134 (a) The carrying amount represents the portion of the asset or liability designated as the hedged item. (b) Basis adjustments related to de-designated hedged items that no longer qualify as fair value hedges reduced the hedge accounting basis adjustm en t by $7 million a nd $7 million at September 30, 2022, and December 31, 2021, respectively, (c) These amounts are designed as fair value hedges under the last-of-layer method. The carrying amount represents the amortized costs basis of the prepayable financial assets used to designate hedging relationships in which the hedged item is the l ast layer expected to be remaining at the end of the relationship. At September 30, 2022, and December 31, 2021, the amortized costs of the closed portfolios in these hedging relationships
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location	The following tables summarize the effect of fair value and cash flow hedge accounting on the income statement for the three- and nine-month periods ended September 30, 2022, and September 30, 2021. Location and amount of net gains (losses) recognized in income on fair value and cash flow hedging relationships Dollars in millions Interest expense – long-term debt Interest income – loans Interest Income - securities Investment banking and debt placement fees Three months ended September 30, 2022 Total amounts presented in the consolidated statement of income $ (146) $ 1,134 $ 196 $ 154 Net gains (losses) on fair value hedging relationships Interest contracts Recognized on hedged items $ 359 $ — $ (14) $ — Recognized on derivatives designated as hedging instruments (367) — 16 — Net income (expense) recognized on fair value hedges $ (8) $ — $ 2 $ — Net gain (loss) on cash flow hedging relationships Interest contracts Realized gains (losses) (pre-tax) reclassified from AOCI into net income $ (1) $ (66) $ — $ 2 Net income (expense) recognized on cash flow hedges $ (1) $ (66) $ — $ 2 Three months ended September 30, 2021 Total amounts presented in the consolidated statement of income $ (54) $ 882 $ 135 $ 235 Net gains (losses) on fair value hedging relationships Interest contracts Recognized on hedged items $ 37 $ — $ (38) $ — Recognized on derivatives designated as hedging instruments (8) — 39 — Net income (expense) recognized on fair value hedges $ 29 $ — $ 1 $ — Net gain (loss) on cash flow hedging relationships Interest contracts Realized gains (losses) (pre-tax) reclassified from AOCI into net income $ (1) $ 79 $ — $ (1) Net income (expense) recognized on cash flow hedges $ (1) $ 79 $ — $ (1) Location and amount of net gains (losses) recognized in income on fair value and cash flow hedging relationships Dollars in millions Interest expense – long-term debt Interest income – loans Interest Income - Securities Investment banking and debt placement fees Nine months ended September 30, 2022 Total amounts presented in the consolidated statement of income $ (256) $ 2,894 $ 557 $ 466 Net gains (losses) on fair value hedging relationships Interest contracts Recognized on hedged items $ 744 $ — $ (341) $ — Recognized on derivatives designated as hedging instruments (710) — 350 — Net income (expense) recognized on fair value hedges $ 34 $ — $ 9 $ — Net gain (loss) on cash flow hedging relationships Interest contracts Realized gains (losses) (pre-tax) reclassified from AOCI into net income $ (3) $ 16 $ — $ 9 Net income (expense) recognized on cash flow hedges $ (3) $ 16 $ — $ 9 Nine months ended September 30, 2021 Total amounts presented in the consolidated statement of income $ (168) $ 2,659 $ 398 $ 614 Net gains (losses) on fair value hedging relationships Interest contracts Recognized on hedged items $ 210 $ — $ (147) $ — Recognized on derivatives designated as hedging instruments (113) — 147 — Net income (expense) recognized on fair value hedges $ 97 $ — $ — $ — Net gain (loss) on cash flow hedging relationships Interest contracts Realized gains (losses) (pre-tax) reclassified from AOCI into net income $ (3) $ 253 $ — $ — Net income (expense) recognized on cash flow hedges $ (3) $ 253 $ — $ —
Schedule of Derivative Instrument Cash Flow Hedge Earning Recognized by Income Statement Location	The following tables summarize the pre-tax net gains (losses) on our cash flow hedges for the three- and nine-month periods ended September 30, 2022, and September 30, 2021, and where they are recorded on the income statement. The table includes net gains (losses) recognized in OCI during the period and net gains (losses) reclassified from OCI into income during the current period. Dollars in millions Net Gains (Losses) Recognized in OCI Income Statement Location of Net Gains (Losses) Reclassified From OCI Into Income Net Gains (Losses) Reclassified From OCI Into Income Three months ended September 30, 2022 Cash Flow Hedges Interest rate $ (709) Interest income — Loans $ (66) Interest rate 3 Interest expense — Long-term debt (1) Interest rate — Investment banking and debt placement fees 2 Total $ (706) $ (65) Three months ended September 30, 2021 Cash Flow Hedges Interest rate $ (2) Interest income — Loans $ 79 Interest rate — Interest expense — Long-term debt (1) Interest rate 4 Investment banking and debt placement fees (1) Total $ 2 $ 77 Dollars in millions Net Gains (Losses) Recognized in OCI Income Statement Location of Net Gains (Losses) Reclassified From OCI Into Income Net Gains (Losses) Reclassified From OCI Into Income (a) Nine months ended September 30, 2022 Cash Flow Hedges Interest rate $ (1,620) Interest income — Loans $ 16 Interest rate 7 Interest expense — Long-term debt (3) Interest rate 12 Investment banking and debt placement fees 9 Total $ (1,601) $ 22 Nine months ended September 30, 2021 Cash Flow Hedges Interest rate $ (144) Interest income — Loans $ 253 Interest rate 2 Interest expense — Long-term debt (3) Interest rate 9 Investment banking and debt placement fees — Total $ (133) $ 250
Schedule of Pre-Tax Net Gains (Losses) on Derivatives Not Designated as Hedging Instruments	The following table summarizes the pre-tax net gains (losses) on our derivatives that are not designated as hedging instruments for the three- and nine-month periods ended September 30, 2022, and September 30, 2021, and where they are recorded on the income statement. Three months ended September 30, 2022 Three months ended September 30, 2021 Dollars in millions Corporate services income Consumer mortgage income Other income Total Corporate services income Consumer mortgage income Other income Total NET GAINS (LOSSES) Interest rate $ 11 $ — $ (2) $ 9 $ 8 $ — $ — $ 8 Foreign exchange 12 — — 12 12 — — 12 Commodity 5 — — 5 4 — — 4 Credit — — (17) (17) 1 — (9) (8) Other — 4 30 34 — — — — Total net gains (losses) $ 28 $ 4 $ 11 $ 43 $ 25 $ — $ (9) $ 16 Nine months ended September 30, 2022 Nine months ended September 30, 2021 Dollars in millions Corporate services income Consumer mortgage income Other income Total Corporate services income Consumer mortgage income Other income Total NET GAINS (LOSSES) Interest rate $ 37 $ — $ 6 $ 43 $ 19 $ — $ 1 $ 20 Foreign exchange 37 — — 37 34 — — 34 Commodity 13 — — 13 12 — — 12 Credit 1 — (32) (31) 5 — (27) (22) Other — 2 14 16 — 13 (22) (9) Total net gains (losses) $ 88 $ 2 $ (12) $ 78 $ 70 $ 13 $ (48) $ 35
Schedule of Fair Value of Derivative Assets by Type	The following table summarizes the fair value of our derivative assets by type at the dates indicated. These assets represent our gross exposure to potential loss after taking into account the effects of bilateral collateral and master netting agreements and other means used to mitigate risk. Dollars in millions September 30, 2022 December 31, 2021 Interest rate $ 163 $ 696 Foreign exchange 127 31 Commodity 1,324 1,108 Credit — — Other 18 27 Derivative assets before collateral 1,632 1,862 Plus(Less): Related collateral (31) 100 Total derivative assets $ 1,601 $ 1,962
Schedule of Credit Derivatives Sold and Held	The following table provides information on the types of credit derivatives sold by us and held on the balance sheet at September 30, 2022, and December 31, 2021. The notional amount represents the amount that the seller could be required to pay. The payment/performance risk shown in the table represents a weighted average of the default probabilities for all reference entities in the respective portfolios. These default probabilities are implied from observed credit indices in the credit default swap market, which are mapped to reference entities based on Key’s internal risk rating. September 30, 2022 December 31, 2021 Dollars in millions Notional Amount Average Term (Years) Payment / Performance Risk Notional Amount Average Term (Years) Payment / Performance Risk Other (a) $ — 4.1 5.54 % $ 149 13.86 3.15 % Total credit derivatives sold $ — — — $ 149 — —
Schedule of Credit Risk Contingent Feature	The following table summarizes the additional cash and securities collateral that KeyBank would have been required to deliver under the ISDA Master Agreements had the credit risk contingent features been triggered for the derivative contracts in a net liability position as of September 30, 2022, and December 31, 2021. The additional collateral amounts were calculated based on scenarios under which KeyBank’s ratings are downgraded one, two, or three ratings as of September 30, 2022, and December 31, 2021, and take into account all collateral already posted. A similar calculation was performed for Ke yCorp, and no addition al collateral would have been required as of September 30, 2022, and December 31, 2021. For more information about the credit ratings for KeyBank and KeyCorp, see the discussion under the heading “Factors affecting liquidity” in the section entitled “Liquidity risk management” in Item 2 of this report. September 30, 2022 December 31, 2021 Dollars in millions Moody’s S&P Moody’s S&P KeyBank’s long-term senior unsecured credit ratings A3 A- A3 A- One rating downgrade $ 1 $ 1 $ 3 $ 3 Two rating downgrades 1 1 3 3 Three rating downgrades 1 1 3 3

Mortgage Servicing Assets (Tabl

Mortgage Servicing Assets (Tables)	9 Months Ended
	Sep. 30, 2022
Servicing Asset [Abstract]
Schedule of Changes in Carrying Amount of Mortgage Servicing Assets	Changes in the carrying amount of commercial mortgage servicing assets are summarized as follows: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Balance at beginning of period $ 647 $ 600 $ 634 $ 578 Servicing retained from loan sales 26 31 78 88 Purchases 9 8 32 22 Amortization (31) (30) (93) (89) Temporary (impairments) recoveries — — — 10 Balance at end of period $ 651 $ 609 $ 651 $ 609 Fair value at end of period $ 942 $ 735 $ 942 $ 735 Changes in the carrying amount of residential mortgage servicing assets are summarized as follows: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Balance at beginning of period $ 104 $ 77 $ 93 $ 58 Servicing retained from loan sales 4 9 21 32 Purchases — — — — Amortization (3) (4) (10) (14) Temporary (impairments) recoveries — 3 1 9 Balance at end of period $ 105 $ 85 $ 105 $ 85 Fair value at end of period $ 127 $ 89 $ 127 $ 89
Schedule of Range and Weighted-Average of Significant Unobservable Inputs	The range and weighted average of the significant unobservable inputs used to determine the fair value of our commercial mortgage servicing assets at September 30, 2022, and September 30, 2021, along with the valuation techniques, are shown in the following table: Dollars in millions September 30, 2022 September 30, 2021 Valuation Technique Significant Unobservable Input Range Weighted Average Range Weighted Average Discounted cash flow Expected defaults 0.98 % 2.00 % 1.08 % 1.00 % 2.00 % 1.15 % Residual cash flows discount rate 8.43 % 10.17 % 9.52 % 7.64 % 10.49 % 9.31 % Escrow earn rate 3.69 % 3.97 % 3.87 % 1.04 % 1.37 % 1.04 % Loan assumption rate — % 1.50 % 1.19 % — % 1.71 % 1.40 % September 30, 2022 September 30, 2021 Valuation Technique Significant Unobservable Input Range Weighted Average Range Weighted Average Discounted cash flow Prepayment speed 7.05 % 44.74 % 8.09 % 8.03 % 48.88 % 11.67 % Discount rate 7.50 % 8.53 % 7.53 % 7.50 % 8.57 % 7.54 % Servicing cost $ 62.00 $ 4,375 $ 66.59 $ 62.00 $ 4,375 $ 68.15

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2022
Leases [Abstract]
Schedule of Operating Lease, Lease Income	The components of equipment leasing income are summarized in the table below: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Sales-type and direct financing leases Interest income on lease receivable $ 16 $ 13 $ 47 $ 59 Interest income related to accretion of unguaranteed residual asset 3 9 11 12 Total sales-type and direct financing lease income $ 19 $ 22 $ 58 $ 71 Operating leases Operating lease income related to lease payments $ 25 $ 31 $ 81 $ 95 Other operating leasing gains (6) 6 (2) 16 Total operating lease income and other leasing gains 19 37 79 111 Total lease income $ 38 $ 59 $ 137 $ 182
Schedule of Sales-type Lease, Lease Income	The components of equipment leasing income are summarized in the table below: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Sales-type and direct financing leases Interest income on lease receivable $ 16 $ 13 $ 47 $ 59 Interest income related to accretion of unguaranteed residual asset 3 9 11 12 Total sales-type and direct financing lease income $ 19 $ 22 $ 58 $ 71 Operating leases Operating lease income related to lease payments $ 25 $ 31 $ 81 $ 95 Other operating leasing gains (6) 6 (2) 16 Total operating lease income and other leasing gains 19 37 79 111 Total lease income $ 38 $ 59 $ 137 $ 182
Schedule of Direct Financing Lease, Lease Income	The components of equipment leasing income are summarized in the table below: Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Sales-type and direct financing leases Interest income on lease receivable $ 16 $ 13 $ 47 $ 59 Interest income related to accretion of unguaranteed residual asset 3 9 11 12 Total sales-type and direct financing lease income $ 19 $ 22 $ 58 $ 71 Operating leases Operating lease income related to lease payments $ 25 $ 31 $ 81 $ 95 Other operating leasing gains (6) 6 (2) 16 Total operating lease income and other leasing gains 19 37 79 111 Total lease income $ 38 $ 59 $ 137 $ 182

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Changes in the carrying amount of goodwill by reporting segment are presented in the following table: Dollars in millions Consumer Bank Commercial Bank Total BALANCE AT SEPTEMBER 30, 2021 $ 1,761 $ 912 $ 2,673 XUP acquisition — 20 20 BALANCE AT DECEMBER 31, 2021 $ 1,761 $ 932 $ 2,693 XUP acquisition measurement period adjustment — 1 1 GradFin acquisition 58 — 58 BALANCE AT SEPTEMBER 30, 2022 $ 1,819 $ 933 $ 2,752

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Variable Interest Entities Information	The assets and liabilities presented in the table below convey the size of KCDC’s direct and indirect investments at September 30, 2022, and December 31, 2021. As these investments represent unconsolidated VIEs, the assets and liabilities of the investments themselves are not recorded on our balance sheet. Additional information pertaining to our LIHTC investments is included in Note 13 (“Variable Interest Entities”) beginning on page 153 of our 2021 Form 10-K. Unconsolidated VIEs Dollars in millions Total Assets Total Liabilities Maximum Exposure to Loss September 30, 2022 LIHTC investments $ 7,344 $ 2,469 $ 2,242 December 31, 2021 LIHTC investments $ 7,839 $ 3,252 $ 1,985 Unconsolidated VIEs Dollars in millions Total Assets Total Liabilities Maximum Exposure to Loss September 30, 2022 Indirect investments $ 6,968 $ 92 $ 46 December 31, 2021 Indirect investments $ 8,437 $ 178 $ 57 Other unconsolidated VIEs Dollars in millions Total Assets Total Liabilities September 30, 2022 Other unconsolidated VIEs $ 2,002 $ 1 December 31, 2021 Other unconsolidated VIEs $ 2,827 $ 1

Securities Financing Activiti_2

Securities Financing Activities (Tables)	9 Months Ended
	Sep. 30, 2022
Banking and Thrift, Other Disclosure [Abstract]
Schedule of Summarized Securities Financing Agreements	The following table summarizes our securities financing agreements at September 30, 2022, and December 31, 2021: September 30, 2022 December 31, 2021 Dollars in millions Gross Amount Presented in Balance Sheet Netting Adjustments (a) Collateral (b) Net Amounts Gross Amount Presented in Balance Sheet Netting Adjustments (a) Collateral (b) Net Amounts Offsetting of financial assets: Reverse repurchase agreements $ 52 $ (52) $ — $ — $ 11 $ (6) $ (5) $ — Securities borrowed 500 — (500) — 500 — (500) — Total $ 552 $ (52) $ (500) $ — $ 511 $ (6) $ (505) $ — Offsetting of financial liabilities: Repurchase agreements (c) $ 122 $ (52) $ (70) $ — $ 173 $ (6) $ (167) $ — Total $ 122 $ (52) $ (70) $ — $ 173 $ (6) $ (167) $ — (a) Netting adjustments take into account the impact of master netting agreements that allow us to settle with a single counterparty on a net basis. (b) These adjustments take into account the impact of bilateral collateral agreements that allow us to offset the net positions with the related collateral. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above. (c) Repurchase agreements are collateralized by mortgaged-backed agency securities and are contracted on an overnight or continuous basis.

Employee Benefits (Tables)

Employee Benefits (Tables)	9 Months Ended
	Sep. 30, 2022
Retirement Benefits [Abstract]
Schedule Of Net Pension Cost (Benefit) for All Funded and Unfunded Plans	The components of net pension cost (benefit) for all funded and unfunded plans are recorded in Other expense and are summarized in the following table. For more information on our Pension Plans and Other Postretirement Benefit Plans, see Note 18 (“Employee Benefits”) beginning on page 161 of our 2021 Form 10-K. Three months ended September 30, Nine months ended September 30, Dollars in millions 2022 2021 2022 2021 Interest cost on PBO $ 7 $ 6 $ 20 $ 18 Expected return on plan assets (7) (7) (20) (21) Amortization of losses 4 5 11 14 Settlement loss — 7 — 7 Net pension cost $ 4 $ 11 $ 11 $ 18

Trust Preferred Securities Is_2

Trust Preferred Securities Issued by Unconsolidated Subsidiaries (Tables)	9 Months Ended
	Sep. 30, 2022
Banking and Thrift, Other Disclosure [Abstract]
Schedule Of Trust Preferred Securities, Common Stock and Related Debentures	The trust preferred securities, common stock, and related debentures are summarized as follows: Dollars in millions Trust Preferred Securities, Net of Discount (a) Common Stock Principal Amount of Debentures, Net of Discount (b) Interest Rate of Trust Preferred Securities and Debentures (c) Maturity of Trust Preferred Securities and Debentures September 30, 2022 KeyCorp Capital I $ 156 $ 6 $ 162 3.017 % 2028 KeyCorp Capital II 95 4 99 6.875 2029 KeyCorp Capital III 107 4 111 7.750 2029 HNC Statutory Trust III 20 1 21 4.380 2035 Willow Grove Statutory Trust I 20 1 21 4.062 2036 HNC Statutory Trust IV 18 1 19 4.603 2037 Westbank Capital Trust II 8 — 8 5.717 2034 Westbank Capital Trust III 8 — 8 5.717 2034 Total $ 432 $ 17 $ 449 5.316 % — December 31, 2021 $ 466 $ 17 $ 483 4.271 % — (a) The trust preferred securities must be redeemed when the related debentures mature, or earlier if provided in the governing indenture. Each issue of trust preferred securities carries an interest rate identical to that of the related debenture. Certain trust preferred securities include basis adjustments related to fair value hedges totaling $17 million at September 30, 2022, and $52 million at December 31, 2021. See Note 7 (“Derivatives and Hedging Activities”) for an explanation of fair value hedges. (b) We have the right to redeem these debentures. If the debentures purchased by KeyCorp Capital I, HNC Statutory Trust III, Willow Grove Statutory Trust I, HNC Statutory Trust IV, Westbank Capital Trust II, or Westbank Capital Trust III are redeemed before they mature, the redemption price will be the principal amount, plus any accrued but unpaid interest. If the debentures purchased by KeyCorp Capital II or KeyCorp Capital III are redeemed before they mature, the redemption price will be the greater of: (i) the principal amount, plus any accrued but unpaid interest, or (ii) the sum of the present values of principal and interest payments discounted at the Treasury Rate (as defined in the applicable indenture), plus 20 basis points for KeyCorp Capital II or 25 basis points for KeyCorp Capital III, or 50 basis points in the case of redemption upon either a tax or a capital treatment event for either KeyCorp Capital II or KeyCorp Capital III, plus any accrued but unpaid interest. The principal amount of certain debentures includes basis adjustments related to fair value hedges totaling $17 million at September 30, 2022, and $52 million at December 31, 2021. See Note 7 (“Derivatives and Hedging Activities”) for an explanation of fair value hedges. The principal amount of debentures, net of discounts, is included in “long-term debt” on the balance sheet. (c) The interest rates for the trust preferred securities issued by KeyCorp Capital II and KeyCorp Capital III are fixed. The trust preferred securities issued by KeyCorp Capital I have a floating interest rate, equal to three-month LIBOR plus 74 basis points, that reprices quarterly. The trust preferred securities issued by HNC Statutory Trust III have a floating interest rate, equal to three-month LIBOR plus 140 basis points, that reprices quarterly. The trust preferred securities issued by Willow Grove Statutory Trust I have a floating interest rate, equal to three-month LIBOR plus 131 basis points, that reprices quarterly. The trust preferred securities issued by HNC Statutory Trust IV have a floating interest rate, equal to three-month LIBOR plus 128 basis points, that reprices quarterly. The trust preferred securities issued by Westbank Capital Trust II and Westbank Capital Trust III each have a floating interest rate, equal to three-month LIBOR plus 219 basis points, that reprices quarterly. The total interest rates are weighted-average rates.

Contingent Liabilities and Gu_2

Contingent Liabilities and Guarantees (Tables)	9 Months Ended
	Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Schedule of Guarantees	The following table shows the types of guarantees that we had outstanding at September 30, 2022. Information pertaining to the basis for determining the liabilities recorded in connection with these guarantees is included in Note 1 (“Summary of Significant Accounting Policies”) under the heading “Contingencies and Guarantees” beginning on page 115 of our 2021 Form 10-K. September 30, 2022 Maximum Potential Undiscounted Future Payments Liability Recorded Dollars in millions Financial guarantees: Standby letters of credit $ 4,473 $ 84 Recourse agreement with FNMA 6,650 26 Residential mortgage reserve 3,298 14 Written put options (a) 3,883 251 Total $ 18,304 $ 375 (a) The maximum potential undiscounted future payments represent notional amounts of derivatives qualifying as guarantees.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Schedule of Changes in AOCI	Our changes in AOCI for the three and nine months ended September 30, 2022, and September 30, 2021, are as follows: Dollars in millions Unrealized gains (losses) on securities available for sale Unrealized gains (losses) on derivative financial instruments Net pension and postretirement benefit costs Total Balance at December 31, 2021 $ (403) $ 88 $ (271) $ (586) Other comprehensive income before reclassification, net of income taxes (4,380) (1,281) (1) (5,662) Amounts reclassified from AOCI, net of income taxes (a) — (17) 8 (9) Net current-period other comprehensive income, net of income taxes (4,380) (1,298) 7 (5,671) Balance at September 30, 2022 $ (4,783) $ (1,210) $ (264) $ (6,257) Balance at June 30, 2022 $ (3,167) $ (733) $ (266) $ (4,166) Other comprehensive income before reclassification, net of income taxes (1,616) (527) (1) (2,144) Amounts reclassified from AOCI, net of income taxes (a) — 50 3 53 Net current-period other comprehensive income, net of income taxes (1,616) (477) 2 (2,091) Balance at September 30, 2022 $ (4,783) $ (1,210) $ (264) $ (6,257) Balance at December 31, 2020 $ 567 $ 476 $ (305) $ 738 Other comprehensive income before reclassification, net of income taxes (617) 11 (2) (608) Amounts reclassified from AOCI, net of income taxes (a) — (191) 16 (175) Net current-period other comprehensive income, net of income taxes (617) (180) 14 (783) Balance at September 30, 2021 $ (50) $ 296 $ (291) $ (45) Balance at June 30, 2021 $ 124 $ 325 $ (299) $ 150 Other comprehensive income before reclassification, net of income taxes (174) 30 (1) (145) Amounts reclassified from AOCI, net of income taxes (a) — (59) 9 (50) Net current-period other comprehensive income, net of income taxes (174) (29) 8 (195) Balance at September 30, 2021 $ (50) $ 296 $ (291) $ (45) (a) See table below for details about these reclassifications.
Schedule of Reclassifications Out of AOCI	Our reclassifications out of AOCI for the three and nine months ended September 30, 2022, and September 30, 2021, are as follows: Three months ended September 30, Affected Line Item in the Consolidated Statement of Income Dollars in millions 2022 2021 Unrealized gains (losses) on derivative financial instruments Interest rate $ (66) $ 79 Interest income — Loans Interest rate (1) (1) Interest expense — Long-term debt Interest rate 2 (1) Investment banking and debt placement fees (65) 77 Income (loss) from continuing operations before income taxes (15) 18 Income taxes $ (50) $ 59 Income (loss) from continuing operations Net pension and postretirement benefit costs Amortization of losses $ (4) $ (5) Other expense Settlement loss — (7) Other expense (4) (12) Income (loss) from continuing operations before income taxes (1) (3) Income taxes $ (3) $ (9) Income (loss) from continuing operations Nine months ended September 30, Affected Line Item in the Statement Where Net Income is Presented Dollars in millions 2022 2021 Unrealized gains (losses) on derivative financial instruments Interest rate $ 16 $ 253 Interest income — Loans Interest rate (3) (3) Interest expense — Long-term debt Interest rate 9 — Investment banking and debt placement fees 22 250 Income (loss) from continuing operations before income taxes 5 59 Income taxes $ 17 $ 191 Income (loss) from continuing operations Net pension and postretirement benefit costs Amortization of losses $ (11) $ (14) Other expense Settlement loss — (7) Other expense Amortization of unrecognized prior service credit 1 — Other expense (10) (21) Income (loss) from continuing operations before income taxes (2) (5) Income taxes $ (8) $ (16) Income (loss) from continuing operations

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Schedule of Stockholders Equity	The following table summarizes our preferred stock at September 30, 2022. Preferred stock series Amount outstanding (in millions) Shares authorized and outstanding Par value Liquidation preference Ownership interest per depositary share Liquidation preference per depositary share Third quarter 2022 dividends paid per depositary share 5.000% Fixed-to-Floating Rate Perpetual Noncumulative Series D $ 525 21,000 $ 1 $ 25,000 1/25th $ 1,000 $ 12.50 6.125% Fixed-to-Floating Rate Perpetual Noncumulative Series E 500 500,000 1 1,000 1/40th 25 .382813 5.650% Fixed Rate Perpetual Noncumulative Series F 425 425,000 1 1,000 1/40th 25 .353125 5.625% Fixed Rate Perpetual Non-Cumulative Series G 450 450,000 1 1,000 1/40th 25 .351563 6.200% Fixed Rate Reset Perpetual Non-Cumulative Series H 600 600,000 1 1,000 1/40th 25 —

Business Segment Reporting (Tab

Business Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Schedule of Financial Information of Business Groups	The table below shows selected financial data for our business segments for the three- and nine-month periods ended September 30, 2022, and September 30, 2021. Capital is assigned to each business segment based on a combination of regulatory and economic equity. Three months ended September 30, Consumer Bank Commercial Bank Other Total Key Dollars in millions 2022 2021 2022 2021 2022 2021 2022 2021 SUMMARY OF OPERATIONS Net interest income (TE) $ 632 $ 582 $ 495 $ 407 $ 76 $ 36 $ 1,203 $ 1,025 Noninterest income 259 288 394 477 30 32 683 797 Total revenue (TE) (a) 891 870 889 884 106 68 1,886 1,822 Provision for credit losses 37 (38) 74 (69) (2) — 109 (107) Depreciation and amortization expense 22 23 28 34 18 18 68 75 Other noninterest expense 645 568 422 436 (29) 33 1,038 1,037 Income (loss) from continuing operations before income taxes (TE) 187 317 365 483 119 17 671 817 Allocated income taxes and TE adjustments 45 76 70 104 16 (6) 131 174 Income (loss) from continuing operations 142 241 295 379 103 23 540 643 Income (loss) from discontinued operations, net of taxes — — — — 2 2 2 2 Net income (loss) 142 241 295 379 105 25 542 645 Less: Net income (loss) attributable to noncontrolling interests — — — — — — — — Net income (loss) attributable to Key $ 142 $ 241 $ 295 $ 379 $ 105 $ 25 $ 542 $ 645 AVERAGE BALANCES (b) Loans and leases $ 42,568 $ 39,854 $ 71,464 $ 59,856 $ 386 $ 428 $ 114,418 $ 100,138 Total assets (a) 45,638 43,039 81,898 69,227 60,656 69,105 188,192 181,371 Deposits 90,044 89,278 52,272 56,401 1,913 1,237 144,229 146,916 OTHER FINANCIAL DATA Net loan charge-offs (b) $ 17 $ 35 $ 27 $ (6) $ (1) $ — $ 43 $ 29 Return on average allocated equity (b) 16.20 % 25.81 % 12.63 % 18.02 % 21.83 % 1.56 % 14.66 % 14.25 % Return on average allocated equity 16.20 25.81 12.63 18.02 22.25 1.70 14.71 14.30 Average full-time equivalent employees (c) 8,114 7,976 2,523 2,371 7,270 6,662 17,907 17,009 (a) Substantially all revenue generated by our major business segments is derived from clients that reside in the United States. Substantially all long-lived assets, including premises and equipment, capitalized software, and goodwill held by our major business segments, are located in the United States. (b) From continuing operations. (c) The number of average full-time equivalent employees was not adjusted for discontinued operations. Nine months ended September 30, Consumer Bank Commercial Bank Other Total Key Dollars in millions 2022 2021 2022 2021 2022 2021 2022 2021 SUMMARY OF OPERATIONS Net interest income (TE) $ 1,745 $ 1,789 $ 1,347 $ 1,234 $ 235 $ 37 $ 3,327 $ 3,060 Noninterest income 769 798 1,192 1,379 86 108 2,047 2,285 Total revenue (TE) (a) 2,514 2,587 2,539 2,613 321 145 5,374 5,345 Provision for credit losses 88 (132) 152 (267) (3) (23) 237 (422) Depreciation and amortization expense 65 61 89 101 53 64 207 226 Other noninterest expense 1,941 1,717 1,184 1,263 (78) 53 3,047 3,033 Income (loss) from continuing operations before income taxes (TE) 420 941 1,114 1,516 349 51 1,883 2,508 Allocated income taxes and TE adjustments 101 226 218 322 47 (25) 366 523 Income (loss) from continuing operations 319 715 896 1,194 302 76 1,517 1,985 Income (loss) from discontinued operations, net of taxes — — — — 6 11 6 11 Net income (loss) 319 715 896 1,194 308 87 1,523 1,996 Less: Net income (loss) attributable to noncontrolling interests — — — — — — — — Net income (loss) attributable to Key $ 319 $ 715 $ 896 $ 1,194 $ 308 (d) $ 87 $ 1,523 $ 1,996 AVERAGE BALANCES (b) Loans and leases $ 40,697 $ 39,954 $ 68,016 $ 60,287 $ 431 $ 321 $ 109,144 $ 100,562 Total assets (a) 43,782 43,165 78,536 69,536 62,471 64,493 184,789 177,194 Deposits 90,939 87,667 54,768 54,309 1,559 1,047 147,266 143,023 OTHER FINANCIAL DATA Net loan charge-offs (b) $ 62 $ 105 $ 59 $ 81 (1) (21) $ 120 $ 165 Return on average allocated equity (b) 11.90 % 26.70 % 13.37 % 18.65 % 14.88 % 1.78 % 13.29 % 14.87 % Return on average allocated equity 11.90 26.70 13.37 18.65 15.17 2.04 13.35 14.96 Average full-time equivalent employees (c) 8,013 8,062 2,441 2,371 7,023 6,601 17,477 17,034 (a) Substantially all revenue generated by our major business segments is derived from clients that reside in the United States. Substantially all long-lived assets, including premises and equipment, capitalized software, and goodwill held by our major business segments, are located in the United States. (b) From continuing operations. (c) The number of average full-time equivalent employees was not adjusted for discontinued operations.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	9 Months Ended
	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	The following table represents a disaggregation of revenue from contracts with customers, by business segment, for the three- and nine-month periods ended September 30, 2022, and September 30, 2021. The development and application of the methodologies that we use to allocate items among our business segments is a dynamic process. Accordingly, financial results may be revised periodically to reflect enhanced alignment of expense base allocations drivers, changes in the risk profile of a particular business, or changes in our organizational structure. Three months ended September 30, 2022 Three months ended September 30, 2021 Dollars in millions Consumer Bank Commercial Bank Total Contract Revenue Consumer Bank Commercial Bank Total Contract Revenue NONINTEREST INCOME Trust and investment services income $ 99 $ 19 $ 118 $ 105 $ 16 $ 121 Investment banking and debt placement fees — 102 102 — 169 169 Services charges on deposit accounts 56 36 92 56 35 91 Cards and payments income 42 20 62 46 61 107 Other noninterest income 3 — 3 2 — 2 Total revenue from contracts with customers $ 200 $ 177 $ 377 $ 209 $ 281 $ 490 Other noninterest income (a) $ 276 $ 275 Noninterest income from Other (b) 30 32 Total noninterest income $ 683 $ 797 (a) Noninterest income considered earned outside the scope of contracts with customers. (b) Other includes other segments that consists of corporate treasury, our principal investing unit, and various exit portfolios as well as reconciling items which primarily represents the unallocated portion of nonearning assets of corporate support functions. Charges related to the funding of these assets are part of net interest income and are allocated to the business segments through noninterest expense. Reconciling items also includes intercompany eliminations and certain items that are not allocated to the business segments because they do not reflect their normal operations. Refer to Note 20 (“Business Segment Reporting”) for more information. Nine months ended September 30, 2022 Nine months ended September 30, 2021 Dollars in millions Consumer Bank Commercial Bank Total Contract Revenue Consumer Bank Commercial Bank Total Contract Revenue NONINTEREST INCOME Trust and investment services income $ 307 $ 58 $ 365 $ 311 $ 49 $ 360 Investment banking and debt placement fees — 316 316 — 367 367 Services charges on deposit accounts 170 109 279 145 102 247 Cards and payments income 120 49 169 135 187 322 Other noninterest income 8 — 8 5 2 7 Total revenue from contracts with customers $ 605 $ 532 $ 1,137 $ 596 $ 707 $ 1,303 Other noninterest income (a) $ 824 $ 874 Noninterest income from Other (b) 86 108 Total noninterest income $ 2,047 $ 2,285 (a) Noninterest income considered earned outside the scope of contracts with customers. (b) Other includes other segments that consists of corporate treasury, our principal investing unit, and various exit portfolios as well as reconciling items which primarily represents the unallocated portion of nonearning assets of corporate support functions. Charges related to the funding of these assets are part of net interest income and are allocated to the business segments through noninterest expense. Reconciling items also includes intercompany eliminations and certain items that are not allocated to the business segments because they do not reflect their normal operations. Refer to Note 20 (“Business Segment Reporting”) for more information.

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
EARNINGS
Income (loss) from continuing operations		$ 540	$ 643	$ 1,517	$ 1,985
Less: Net income (loss) attributable to noncontrolling interests		0	0	0	0
Income (loss) from continuing operations attributable to Key		540	643	1,517	1,985
Less: Dividends on Preferred Stock		27	27	80	80
Income (loss) from continuing operations attributable to Key common shareholders		513	616	1,437	1,905
Income (loss) from discontinued operations, net of taxes		2	2	6	11
Net income (loss) attributable to Key common shareholders		$ 515	$ 618	$ 1,443	$ 1,916
WEIGHTED-AVERAGE COMMON SHARES
Weighted-average common shares outstanding (in shares)		924,594	942,446	924,085	955,069
Effect of common share options and other stock awards (in shares)		7,861	10,077	8,679	9,712
Weighted-average Common Shares and potential Common Shares outstanding (in shares)	[1]	932,455	952,523	932,764	964,781
EARNINGS PER COMMON SHARE
Income (loss) from continuing operations attributable to Key common shareholders (in usd per share)		$ 0.55	$ 0.65	$ 1.55	$ 1.99
Income (loss) from discontinued operations, net of taxes (in usd per share)		0	0	0.01	0.01
Net income (loss) attributable to Key common shareholders (in usd per share)	[2]	0.55	0.66	1.56	2
Income (loss) from continuing operations attributable to Key common shareholders - assuming dilution (in usd per share)		0.55	0.65	1.54	1.98
Income (loss) from discontinued operations, net of taxes - assuming dilution (in usd per share)		0	0	0.01	0.01
Net income (loss) attributable to Key common shareholders (in usd per share)	[2]	$ 0.55	$ 0.65	$ 1.55	$ 1.99
[1]Assumes conversion of Common Share options and other stock awards and/or convertible preferred stock, as applicable.[2]EPS may not foot due to rounding.

Loan Portfolio (Details)

Loan Portfolio (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 116,191	$ 101,854
Accrued interest	274	198
Total commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	79,597	70,836
Accrued interest	197	113
Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	36,594	31,018
Accrued interest	77	85
Commercial and Industrial | Total commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	56,971	50,525
Commercial mortgage | Total commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	16,400	14,244
Construction | Total commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,349	1,996
Total commercial real estate loans | Total commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	18,749	16,240
Commercial lease financing | Total commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	3,877	4,071
Real estate — residential mortgage | Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	20,838	15,756
Home equity loans | Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	7,926	8,467
Total residential — prime loans | Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	28,764	24,223
Consumer direct loans | Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	6,803	5,753
Credit cards | Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	977	972
Consumer indirect loans | Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	50	70
Credit cards | Total commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	166	139
Credit cards | Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	977	972
Collateral pledged | Total commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	10	16
Education Lending | Discontinued operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 467	$ 567

Asset Quality - Changes in Allo

Asset Quality - Changes in Allowance for Loan and Lease Losses by Loan Category (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 1,099	$ 1,220	$ 1,061	$ 1,626
Provision	88	(107)	203	(377)
Charge-offs	(68)	(66)	(178)	(272)
Recoveries	25	37	58	107
Ending balance	1,144	1,084	1,144	1,084
Total ALLL, including discontinued operations, beginning balance	1,123	1,250	1,089	1,662
Total provision, including discontinued operations	86	(108)	199	(383)
Total charge-offs, including discontinued operations	(69)	(67)	(182)	(275)
Total recoveries, including discontinued operations	26	38	60	109
Total ALLL, including discontinued operations, ending balance	1,166	1,113	1,166	1,113
Provision (credit) for losses on lending-related commitments	21	0	34	(45)
Total commercial loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	709	795	688	1,099
Provision	66	(89)	142	(284)
Charge-offs	(52)	(28)	(130)	(185)
Recoveries	16	27	39	75
Ending balance	739	705	739	705
Total consumer loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	390	425	373	527
Provision	22	(18)	61	(93)
Charge-offs	(16)	(38)	(48)	(87)
Recoveries	9	10	19	32
Ending balance	405	379	405	379
Commercial and Industrial | Total commercial loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	503	499	445	678
Provision	52	(30)	160	(135)
Charge-offs	(49)	(27)	(118)	(141)
Recoveries	13	20	32	60
Ending balance	519	462	519	462
Commercial mortgage | Total commercial loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	156	227	182	327
Provision	13	(44)	(8)	(112)
Charge-offs	(3)	0	(10)	(39)
Recoveries	2	1	4	8
Ending balance	168	184	168	184
Construction | Total commercial loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	21	35	29	47
Provision	1	(8)	(8)	(20)
Charge-offs	0	0	0	0
Recoveries	0	0	1	0
Ending balance	22	27	22	27
Total commercial real estate loans | Total commercial loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	177	262	211	374
Provision	14	(52)	(16)	(132)
Charge-offs	(3)	0	(10)	(39)
Recoveries	2	1	5	8
Ending balance	190	211	190	211
Commercial lease financing | Total commercial loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	29	34	32	47
Provision	0	(7)	(2)	(17)
Charge-offs	0	(1)	(2)	(5)
Recoveries	1	6	2	7
Ending balance	30	32	30	32
Real estate — residential mortgage | Total consumer loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	122	86	95	102
Provision	15	(1)	38	(17)
Charge-offs	(1)	2	2	1
Recoveries	1	1	2	2
Ending balance	137	88	137	88
Home equity loans | Total consumer loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	95	136	110	171
Provision	(3)	(13)	(19)	(44)
Charge-offs	0	(1)	(1)	(7)
Recoveries	1	2	3	4
Ending balance	93	124	93	124
Consumer direct loans | Total consumer loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	112	115	105	128
Provision	4	(5)	25	(7)
Charge-offs	(8)	(7)	(25)	(22)
Recoveries	4	2	7	6
Ending balance	112	105	112	105
Credit cards | Total consumer loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	59	68	61	87
Provision	7	(4)	17	(13)
Charge-offs	(7)	(6)	(22)	(21)
Recoveries	2	1	5	6
Ending balance	61	59	61	59
Consumer indirect loans | Total consumer loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2	20	2	39
Provision	(1)	5	0	(12)
Charge-offs	0	(26)	(2)	(38)
Recoveries	1	4	2	14
Ending balance	2	3	2	3
Discontinued operations
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	24	30	28	36
Provision	(2)	(1)	(4)	(6)
Charge-offs	(1)	(1)	(4)	(3)
Recoveries	1	1	2	2
Ending balance	$ 22	$ 29	$ 22	$ 29

Asset Quality - Additional Info

Asset Quality - Additional Information (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($) loan	Sep. 30, 2021 USD ($) loan	Sep. 30, 2022 USD ($) loan	Sep. 30, 2021 USD ($) loan	Dec. 31, 2021 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of carrying amount of our commercial nonperforming loans outstanding (as a percent)	60%		60%
Percentage of nonperforming loans outstanding face value (as a percent)	72%		72%
Percentage of loans held for sale and other nonperforming assets (as a percent)	80%		80%
Net reduction to interest income	$ 4	$ 6	$ 13	$ 20
Commitments outstanding to lend additional funds to borrowers (less than $1 million)	10		10		$ 15
Financial receivable, modifications, subsequent default, recorded investment	1	$ 2	11	$ 4
Real estate — residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financial receivable, modifications, subsequent default, recorded investment			108		$ 104
Non-performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonperforming loans on nonaccrual status with no allowance	$ 220		$ 220
Total commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDRs, period for default (in days)			90 days
Number of loans | loan	2	2	7	5
Total commercial loans | Continuing Operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (decrease) in ALLL	$ 30
Decrease in ALLL (as a percent)	4.20%
Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDRs, period for default (in days)			60 days
Number of loans | loan	56	33	146	98
Total consumer loans | Continuing Operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (decrease) in ALLL	$ 15
Decrease in ALLL (as a percent)	3.80%

Asset Quality - Commercial Cred

Asset Quality - Commercial Credit Exposure (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 116,191	$ 101,854
Accrued interest	274	198
Total commercial loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current	12,957
One year prior	15,843	18,212
Two years prior	5,996	7,556
Three years prior	6,282	7,624
Four years prior	3,463	4,772
Five years prior		3,136
Prior	8,124
Prior		7,235
Revolving Loans Amortized Cost Basis	26,719	22,159
Revolving Loans Converted to Term Loans Amortized Cost Basis	213	142
Total	79,597	70,836
Accrued interest	197	113
Total commercial loans | Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Current	7,622
One year prior	9,938	11,740
Two years prior	3,866	5,013
Three years prior	3,387	4,176
Four years prior	2,148	2,956
Five years prior		1,996
Prior	4,107
Prior		3,244
Revolving Loans Amortized Cost Basis	25,741	21,312
Revolving Loans Converted to Term Loans Amortized Cost Basis	162	88
Total	56,971	50,525
Total commercial loans | Commercial and Industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current	7,572
One year prior	9,757	11,675
Two years prior	3,729	4,941
Three years prior	3,267	4,040
Four years prior	1,862	2,771
Five years prior		1,777
Prior	3,831
Prior		3,108
Revolving Loans Amortized Cost Basis	24,796	20,406
Revolving Loans Converted to Term Loans Amortized Cost Basis	132	72
Total	54,946	48,790
Total commercial loans | Commercial and Industrial | Criticized (Accruing)
Financing Receivable, Credit Quality Indicator [Line Items]
Current	11
One year prior	179	64
Two years prior	130	71
Three years prior	114	115
Four years prior	278	175
Five years prior		200
Prior	251
Prior		121
Revolving Loans Amortized Cost Basis	865	784
Revolving Loans Converted to Term Loans Amortized Cost Basis	28	14
Total	1,856	1,544
Total commercial loans | Commercial and Industrial | Criticized (Nonaccruing)
Financing Receivable, Credit Quality Indicator [Line Items]
Current	39
One year prior	2	1
Two years prior	7	1
Three years prior	6	21
Four years prior	8	10
Five years prior		19
Prior	25
Prior		15
Revolving Loans Amortized Cost Basis	80	122
Revolving Loans Converted to Term Loans Amortized Cost Basis	2	2
Total	169	191
Total commercial loans | Commercial mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Current	4,162
One year prior	4,288	4,938
Two years prior	1,041	1,220
Three years prior	1,999	2,208
Four years prior	920	1,235
Five years prior		721
Prior	2,962
Prior		3,024
Revolving Loans Amortized Cost Basis	977	844
Revolving Loans Converted to Term Loans Amortized Cost Basis	51	54
Total	16,400	14,244
Total commercial loans | Commercial mortgage | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current	4,162
One year prior	4,264	4,923
Two years prior	1,014	1,197
Three years prior	1,912	2,137
Four years prior	827	1,168
Five years prior		612
Prior	2,695
Prior		2,787
Revolving Loans Amortized Cost Basis	927	803
Revolving Loans Converted to Term Loans Amortized Cost Basis	50	53
Total	15,851	13,680
Total commercial loans | Commercial mortgage | Criticized (Accruing)
Financing Receivable, Credit Quality Indicator [Line Items]
Current	0
One year prior	24	15
Two years prior	26	22
Three years prior	85	70
Four years prior	91	62
Five years prior		109
Prior	242
Prior		206
Revolving Loans Amortized Cost Basis	46	35
Revolving Loans Converted to Term Loans Amortized Cost Basis	1	1
Total	515	520
Total commercial loans | Commercial mortgage | Criticized (Nonaccruing)
Financing Receivable, Credit Quality Indicator [Line Items]
Current	0
One year prior	0	0
Two years prior	1	1
Three years prior	2	1
Four years prior	2	5
Five years prior		0
Prior	25
Prior		31
Revolving Loans Amortized Cost Basis	4	6
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	34	44
Total commercial loans | Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Current	475
One year prior	747	495
Two years prior	521	569
Three years prior	370	535
Four years prior	182	266
Five years prior		96
Prior	53
Prior		32
Revolving Loans Amortized Cost Basis	1	3
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	2,349	1,996
Total commercial loans | Construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current	475
One year prior	747	495
Two years prior	516	565
Three years prior	365	530
Four years prior	168	223
Five years prior		92
Prior	49
Prior		32
Revolving Loans Amortized Cost Basis	1	2
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	2,321	1,939
Total commercial loans | Construction | Criticized (Accruing)
Financing Receivable, Credit Quality Indicator [Line Items]
Current	0
One year prior	0	0
Two years prior	5	4
Three years prior	5	5
Four years prior	14	43
Five years prior		4
Prior	4
Prior		0
Revolving Loans Amortized Cost Basis	0	1
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	28	57
Total commercial loans | Construction | Criticized (Nonaccruing)
Financing Receivable, Credit Quality Indicator [Line Items]
Current	0
One year prior	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Five years prior		0
Prior	0
Prior		0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	0	0
Total commercial loans | Commercial lease financing
Financing Receivable, Credit Quality Indicator [Line Items]
Current	698
One year prior	870	1,039
Two years prior	568	754
Three years prior	526	705
Four years prior	213	315
Five years prior		323
Prior	1,002
Prior		935
Revolving Loans Amortized Cost Basis		0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	3,877	4,071
Total commercial loans | Commercial lease financing | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current	697
One year prior	869	1,039
Two years prior	558	748
Three years prior	506	675
Four years prior	199	301
Five years prior		309
Prior	991
Prior		927
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	3,820	3,999
Total commercial loans | Commercial lease financing | Criticized (Accruing)
Financing Receivable, Credit Quality Indicator [Line Items]
Current	1
One year prior	1	0
Two years prior	10	6
Three years prior	19	29
Four years prior	13	13
Five years prior		13
Prior	11
Prior		7
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	55	68
Total commercial loans | Commercial lease financing | Criticized (Nonaccruing)
Financing Receivable, Credit Quality Indicator [Line Items]
Current	0
One year prior	0	0
Two years prior	0	0
Three years prior	1	1
Four years prior	1	1
Five years prior		1
Prior	0
Prior		1
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	$ 2	$ 4

Asset Quality - Consumer Credit

Asset Quality - Consumer Credit Exposure (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 116,191	$ 101,854
Accrued interest	274	198
Total consumer loans
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	8,343	13,637
Two years prior	12,918	5,890
Three years prior	5,084	2,095
Four years prior	1,636	432
Five years prior	328	384
Prior	2,604	2,812
Revolving Loans Amortized Cost Basis	5,111	5,156
Revolving Loans Converted to Term Loans Amortized Cost Basis	570	612
Total	36,594	31,018
Accrued interest	77	85
Total consumer loans | Real estate — residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	6,301	9,636
Two years prior	9,266	3,274
Three years prior	2,942	966
Four years prior	774	140
Five years prior	111	163
Prior	1,443	1,576
Revolving Loans Amortized Cost Basis	1	1
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	20,838	15,756
Total consumer loans | Real estate — residential mortgage | 750 and above
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	4,959	7,906
Two years prior	8,248	2,909
Three years prior	2,624	777
Four years prior	643	84
Five years prior	63	126
Prior	1,015	1,096
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	17,552	12,898
Total consumer loans | Real estate — residential mortgage | 660 to 749
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	1,256	1,686
Two years prior	979	351
Three years prior	299	169
Four years prior	115	39
Five years prior	32	25
Prior	261	308
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	2,942	2,578
Total consumer loans | Real estate — residential mortgage | Less than 660
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	35	26
Two years prior	38	14
Three years prior	18	19
Four years prior	15	16
Five years prior	15	9
Prior	139	142
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	260	226
Total consumer loans | Real estate — residential mortgage | No Score
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	51	18
Two years prior	1	0
Three years prior	1	1
Four years prior	1	1
Five years prior	1	3
Prior	28	30
Revolving Loans Amortized Cost Basis	1	1
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	84	54
Total consumer loans | Home equity loans
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	236	1,472
Two years prior	1,212	1,119
Three years prior	986	382
Four years prior	314	153
Five years prior	119	181
Prior	929	964
Revolving Loans Amortized Cost Basis	3,560	3,584
Revolving Loans Converted to Term Loans Amortized Cost Basis	570	612
Total	7,926	8,467
Total consumer loans | Home equity loans | 750 and above
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	138	1,051
Two years prior	879	830
Three years prior	760	251
Four years prior	214	96
Five years prior	76	128
Prior	647	666
Revolving Loans Amortized Cost Basis	2,303	2,244
Revolving Loans Converted to Term Loans Amortized Cost Basis	403	423
Total	5,420	5,689
Total consumer loans | Home equity loans | 660 to 749
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	85	394
Two years prior	302	263
Three years prior	204	111
Four years prior	83	44
Five years prior	33	40
Prior	196	204
Revolving Loans Amortized Cost Basis	961	1,004
Revolving Loans Converted to Term Loans Amortized Cost Basis	129	143
Total	1,993	2,203
Total consumer loans | Home equity loans | Less than 660
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	9	27
Two years prior	31	24
Three years prior	22	20
Four years prior	17	13
Five years prior	10	13
Prior	84	92
Revolving Loans Amortized Cost Basis	294	333
Revolving Loans Converted to Term Loans Amortized Cost Basis	38	46
Total	505	568
Total consumer loans | Home equity loans | No Score
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	4	0
Two years prior	0	2
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	2	2
Revolving Loans Amortized Cost Basis	2	3
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	8	7
Total consumer loans | Consumer direct loans
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	1,806	2,524
Two years prior	2,438	1,497
Three years prior	1,156	747
Four years prior	548	139
Five years prior	98	40
Prior	184	207
Revolving Loans Amortized Cost Basis	573	599
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	6,803	5,753
Total consumer loans | Consumer direct loans | 750 and above
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	1,229	1,799
Two years prior	1,876	1,129
Three years prior	860	517
Four years prior	378	65
Five years prior	50	17
Prior	106	129
Revolving Loans Amortized Cost Basis	104	109
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	4,603	3,765
Total consumer loans | Consumer direct loans | 660 to 749
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	474	612
Two years prior	461	295
Three years prior	242	174
Four years prior	129	46
Five years prior	29	10
Prior	44	45
Revolving Loans Amortized Cost Basis	204	212
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	1,583	1,394
Total consumer loans | Consumer direct loans | Less than 660
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	44	45
Two years prior	62	33
Three years prior	31	27
Four years prior	23	11
Five years prior	7	3
Prior	10	12
Revolving Loans Amortized Cost Basis	55	60
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	232	191
Total consumer loans | Consumer direct loans | No Score
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	59	68
Two years prior	39	40
Three years prior	23	29
Four years prior	18	17
Five years prior	12	10
Prior	24	21
Revolving Loans Amortized Cost Basis	210	218
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	385	403
Total consumer loans | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	977	972
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	977	972
Total consumer loans | Credit cards | 750 and above
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	493	500
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	493	500
Total consumer loans | Credit cards | 660 to 749
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	391	387
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	391	387
Total consumer loans | Credit cards | Less than 660
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	92	84
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	92	84
Total consumer loans | Credit cards | No Score
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	1	1
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	1	1
Total consumer loans | Consumer indirect loans
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	0	5
Two years prior	2	0
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	48	65
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	50	70
Total consumer loans | Consumer indirect loans | 750 and above
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	0	5
Two years prior	2	0
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	24	30
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	26	35
Total consumer loans | Consumer indirect loans | 660 to 749
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	17	26
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	17	26
Total consumer loans | Consumer indirect loans | Less than 660
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	7	9
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	7	9
Total consumer loans | Consumer indirect loans | No Score
Financing Receivable, Credit Quality Indicator [Line Items]
One year prior	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Five years prior	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0	0
Total	$ 0	$ 0

Asset Quality - Aging Analysis

Asset Quality - Aging Analysis of Past Due and Current Loans (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Total	$ 116,191	$ 101,854
Accrued interest	274	198
Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	79,597	70,836
Accrued interest	197	113
Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	36,594	31,018
Accrued interest	77	85
Non-performing Loans
Financing Receivable, Past Due [Line Items]
Total	390	454
Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	205	239
Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	185	215
Current
Financing Receivable, Past Due [Line Items]
Total	115,567	101,167
Current | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	79,232	70,439
Current | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	36,335	30,728
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	138	76
30-59 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	95	35
30-59 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	43	41
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	49	89
60-89 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	33	75
60-89 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	16	14
90 and Greater Days Past Due
Financing Receivable, Past Due [Line Items]
Total	47	68
90 and Greater Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	32	48
90 and Greater Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	15	20
Total Past Due and Non-performing Loans
Financing Receivable, Past Due [Line Items]
Total	624	687
Total Past Due and Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	365	397
Total Past Due and Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	259	290
Total commercial real estate loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	18,749	16,240
Total commercial real estate loans | Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	34	44
Total commercial real estate loans | Current | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	18,701	16,152
Total commercial real estate loans | 30-59 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	4	10
Total commercial real estate loans | 60-89 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	1	26
Total commercial real estate loans | 90 and Greater Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	9	8
Total commercial real estate loans | Total Past Due and Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	48	88
Commercial and Industrial | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	56,971	50,525
Commercial and Industrial | Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	169	191
Commercial and Industrial | Current | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	56,674	50,226
Commercial and Industrial | 30-59 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	75	19
Commercial and Industrial | 60-89 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	31	49
Commercial and Industrial | 90 and Greater Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	22	40
Commercial and Industrial | Total Past Due and Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	297	299
Commercial mortgage | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	16,400	14,244
Commercial mortgage | Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	34	44
Commercial mortgage | Current | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	16,353	14,174
Commercial mortgage | 30-59 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	4	10
Commercial mortgage | 60-89 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	1	9
Commercial mortgage | 90 and Greater Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	8	7
Commercial mortgage | Total Past Due and Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	47	70
Construction | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	2,349	1,996
Construction | Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	0	0
Construction | Current | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	2,348	1,978
Construction | 30-59 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	0	0
Construction | 60-89 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	0	17
Construction | 90 and Greater Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	1	1
Construction | Total Past Due and Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	1	18
Commercial lease financing | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	3,877	4,071
Commercial lease financing | Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	2	4
Commercial lease financing | Current | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	3,857	4,061
Commercial lease financing | 30-59 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	16	6
Commercial lease financing | 60-89 Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	1	0
Commercial lease financing | 90 and Greater Days Past Due | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	1	0
Commercial lease financing | Total Past Due and Non-performing Loans | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	20	10
Real estate — residential mortgage | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	20,838	15,756
Real estate — residential mortgage | Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	66	72
Real estate — residential mortgage | Current | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	20,759	15,669
Real estate — residential mortgage | 30-59 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	9	7
Real estate — residential mortgage | 60-89 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	3	3
Real estate — residential mortgage | 90 and Greater Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	1	5
Real estate — residential mortgage | Total Past Due and Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	79	87
Home equity loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	7,926	8,467
Home equity loans | Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	112	135
Home equity loans | Current | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	7,787	8,299
Home equity loans | 30-59 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	19	21
Home equity loans | 60-89 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	4	6
Home equity loans | 90 and Greater Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	4	6
Home equity loans | Total Past Due and Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	139	168
Consumer direct loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	6,803	5,753
Consumer direct loans | Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	3	4
Consumer direct loans | Current | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	6,779	5,736
Consumer direct loans | 30-59 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	11	8
Consumer direct loans | 60-89 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	6	2
Consumer direct loans | 90 and Greater Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	4	3
Consumer direct loans | Total Past Due and Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	24	17
Credit cards | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total	166	139
Credit cards | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	977	972
Credit cards | Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	3	3
Credit cards | Current | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	961	956
Credit cards | 30-59 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	4	4
Credit cards | 60-89 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	3	3
Credit cards | 90 and Greater Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	6	6
Credit cards | Total Past Due and Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	16	16
Consumer indirect loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	50	70
Consumer indirect loans | Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	1	1
Consumer indirect loans | Current | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	49	68
Consumer indirect loans | 30-59 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	0	1
Consumer indirect loans | 60-89 Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	0	0
Consumer indirect loans | 90 and Greater Days Past Due | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	0	0
Consumer indirect loans | Total Past Due and Non-performing Loans | Total consumer loans
Financing Receivable, Past Due [Line Items]
Total	$ 1	$ 2

Asset Quality - Post-Modificati

Asset Quality - Post-Modification Outstanding Recorded Investment by Concession Type for Our Commercial Accruing and Nonaccruing TDRs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total TDRs	$ 49	$ 15	$ 68	$ 36
Total commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Extension of Maturity Date	40	0	40	5
Payment or Covenant Modification/Deferment	0	0	1	7
Bankruptcy Plan Modification	0	0	0	0
Increase in new commitment or new money	0	0	0	0
Total	40	0	41	12
Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest rate reduction	5	3	10	6
Other	4	12	17	18
Total	$ 9	$ 15	$ 27	$ 24

Asset Quality - Summary of Post

Asset Quality - Summary of Post-Modification Outstanding Recorded Investment TDRs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Financing Receivables, Modifications, Rollforward [Roll Forward]
Balance at beginning of the period	$ 216	$ 334	$ 220	$ 363
Additions	48	17	70	98
Payments	(10)	(81)	(34)	(162)
Charge-offs	0	0	(2)	(29)
Balance at end of period	$ 254	$ 270	$ 254	$ 270

Asset Quality - Breakdown of No

Asset Quality - Breakdown of Nonperforming TDRs by Loans Category (Details) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	4,275	4,429
Pre-modification Outstanding Recorded Investment	$ 340	$ 308
Post-modification Outstanding Recorded Investment	$ 254	$ 220
Prior-Year Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2,982	3,049
Pre-modification Outstanding Recorded Investment	$ 159	$ 160
Post-modification Outstanding Recorded Investment	$ 120	$ 121
Prior-Year Accruing | Total commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	17	12
Pre-modification Outstanding Recorded Investment	$ 1	$ 0
Post-modification Outstanding Recorded Investment	$ 0	$ 0
Prior-Year Accruing | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2,965	3,037
Pre-modification Outstanding Recorded Investment	$ 158	$ 160
Post-modification Outstanding Recorded Investment	$ 120	$ 121
Non-performing Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	1,293	1,380
Pre-modification Outstanding Recorded Investment	$ 181	$ 148
Post-modification Outstanding Recorded Investment	$ 134	$ 99
Non-performing Loans | Total commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	41	39
Pre-modification Outstanding Recorded Investment	$ 114	$ 80
Post-modification Outstanding Recorded Investment	$ 75	$ 39
Non-performing Loans | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	1,252	1,341
Pre-modification Outstanding Recorded Investment	$ 67	$ 68
Post-modification Outstanding Recorded Investment	$ 59	$ 60
Total commercial real estate loans | Prior-Year Accruing | Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0	1
Pre-modification Outstanding Recorded Investment	$ 0	$ 0
Post-modification Outstanding Recorded Investment	$ 0	$ 0
Total commercial real estate loans | Non-performing Loans | Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	4	3
Pre-modification Outstanding Recorded Investment	$ 50	$ 50
Post-modification Outstanding Recorded Investment	$ 23	$ 25
Commercial and Industrial | Prior-Year Accruing | Total commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	17	11
Pre-modification Outstanding Recorded Investment	$ 1	$ 0
Post-modification Outstanding Recorded Investment	$ 0	$ 0
Commercial and Industrial | Non-performing Loans | Total commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	37	36
Pre-modification Outstanding Recorded Investment	$ 64	$ 30
Post-modification Outstanding Recorded Investment	$ 52	$ 14
Commercial mortgage | Prior-Year Accruing | Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0	1
Pre-modification Outstanding Recorded Investment	$ 0	$ 0
Post-modification Outstanding Recorded Investment	$ 0	$ 0
Commercial mortgage | Non-performing Loans | Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	4	3
Pre-modification Outstanding Recorded Investment	$ 50	$ 50
Post-modification Outstanding Recorded Investment	$ 23	$ 25
Real estate — residential mortgage | Prior-Year Accruing | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	443	455
Pre-modification Outstanding Recorded Investment	$ 41	$ 39
Post-modification Outstanding Recorded Investment	$ 35	$ 33
Real estate — residential mortgage | Non-performing Loans | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	234	220
Pre-modification Outstanding Recorded Investment	$ 29	$ 26
Post-modification Outstanding Recorded Investment	$ 26	$ 24
Home equity loans | Prior-Year Accruing | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	1,563	1,628
Pre-modification Outstanding Recorded Investment	$ 97	$ 97
Post-modification Outstanding Recorded Investment	$ 74	$ 75
Home equity loans | Non-performing Loans | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	478	531
Pre-modification Outstanding Recorded Investment	$ 32	$ 36
Post-modification Outstanding Recorded Investment	$ 28	$ 31
Consumer direct loans | Prior-Year Accruing | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	257	236
Pre-modification Outstanding Recorded Investment	$ 4	$ 5
Post-modification Outstanding Recorded Investment	$ 3	$ 3
Consumer direct loans | Non-performing Loans | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	180	207
Pre-modification Outstanding Recorded Investment	$ 2	$ 3
Post-modification Outstanding Recorded Investment	$ 2	$ 2
Credit cards | Prior-Year Accruing | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	595	579
Pre-modification Outstanding Recorded Investment	$ 4	$ 4
Post-modification Outstanding Recorded Investment	$ 2	$ 2
Credit cards | Non-performing Loans | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	343	360
Pre-modification Outstanding Recorded Investment	$ 2	$ 2
Post-modification Outstanding Recorded Investment	$ 2	$ 2
Consumer indirect loans | Prior-Year Accruing | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	107	139
Pre-modification Outstanding Recorded Investment	$ 12	$ 15
Post-modification Outstanding Recorded Investment	$ 6	$ 8
Consumer indirect loans | Non-performing Loans | Total consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	17	23
Pre-modification Outstanding Recorded Investment	$ 2	$ 1
Post-modification Outstanding Recorded Investment	$ 1	$ 1

Asset Quality - Changes in Liab

Asset Quality - Changes in Liability for Credit Losses on Lending Related Commitments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Balance at beginning of period	$ 194	$ 152	$ 194	$ 152	$ 173	$ 160	$ 152	$ 197
Provision (credit) for losses on off balance sheet exposures	21	0	34	(45)
Balance at end of period	$ 194	$ 152	$ 194	$ 152

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value of Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	$ 1,068	$ 701
Securities available for sale	40,000	45,364
Loans, net of unearned income	116,191	101,854
Derivative assets, netting adjustments	(720)	(284)
Total derivative assets	1,601	1,962
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, netting adjustments	(1,925)	(1,526)
Other
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	0
U.S. Treasury, agencies and corporations
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	9,386	9,472
Agency residential mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	3,985	5,122
Agency commercial mortgage-backed securities | Mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	9,391	9,651
Other securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	1	0
Recurring
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	1,062	683
Commercial loans	6	18
Total trading account assets	1,068	701
Securities available for sale	40,000	45,364
Total other investments	75	105
Loans, net of unearned income	9	11
Loans held for sale (residential)	61	281
Derivative assets, gross	2,321	2,246
Derivative assets, netting adjustments	(720)	(284)
Total derivative assets	1,601	1,962
Total assets on a recurring basis at fair value	42,814	48,424
LIABILITIES MEASURED ON A RECURRING BASIS
Total liabilities on a recurring basis at fair value	2,426	749
Recurring | Short positions
LIABILITIES MEASURED ON A RECURRING BASIS
Short positions	826	588
Recurring | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	3,525	1,687
Derivative liabilities, netting adjustments	(1,925)	(1,526)
Total derivative liabilities	1,600	161
Recurring | Interest rate
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	219	807
Recurring | Interest rate | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	1,429	253
Recurring | Foreign exchange
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	225	81
Recurring | Foreign exchange | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	217	76
Recurring | Commodity
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	1,857	1,330
Recurring | Commodity | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	1,838	1,335
Recurring | Credit
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	0	1
Recurring | Credit | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	4	12
Recurring | Other
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	20	27
Recurring | Other | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	37	11
Recurring | Agency residential collateralized mortgage obligations
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	17,237	21,119
Recurring | Mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	133	44
Recurring | U.S. Treasury, agencies and corporations
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	847	530
Securities available for sale	9,386	9,472
Recurring | States and political subdivisions
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	68	96
Securities available for sale	0	0
Recurring | Agency residential mortgage-backed securities | Mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	3,985	5,122
Recurring | Agency commercial mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	9,391	9,651
Recurring | Other securities
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	14	13
Securities available for sale	1	0
Recurring | Principal investments, Direct
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	1	1
Recurring | Principal Investments
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	37	46
Recurring | Equity Investments, Direct
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	5	33
Recurring | Equity Investments
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	38	59
Recurring | Level 1
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	2	0
Commercial loans	0	0
Total trading account assets	2	0
Securities available for sale	0	0
Total other investments	3	24
Loans, net of unearned income	0	0
Loans held for sale (residential)	0	0
Derivative assets, gross	180	71
Derivative assets, netting adjustments	0	0
Total derivative assets	180	71
Total assets on a recurring basis at fair value	185	95
LIABILITIES MEASURED ON A RECURRING BASIS
Total liabilities on a recurring basis at fair value	315	141
Recurring | Level 1 | Short positions
LIABILITIES MEASURED ON A RECURRING BASIS
Short positions	143	75
Recurring | Level 1 | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	172	66
Derivative liabilities, netting adjustments	0	0
Total derivative liabilities	172	66
Recurring | Level 1 | Interest rate
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	0	0
Recurring | Level 1 | Interest rate | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	0	0
Recurring | Level 1 | Foreign exchange
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	180	71
Recurring | Level 1 | Foreign exchange | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	172	66
Recurring | Level 1 | Commodity
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	0	0
Recurring | Level 1 | Commodity | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	0	0
Recurring | Level 1 | Credit
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	0	0
Recurring | Level 1 | Credit | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	0	0
Recurring | Level 1 | Other
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	0	0
Recurring | Level 1 | Other | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	0	0
Recurring | Level 1 | Agency residential collateralized mortgage obligations
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	0	0
Recurring | Level 1 | Mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	0	0
Recurring | Level 1 | U.S. Treasury, agencies and corporations
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	0	0
Securities available for sale	0	0
Recurring | Level 1 | States and political subdivisions
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	0	0
Securities available for sale	0	0
Recurring | Level 1 | Agency residential mortgage-backed securities | Mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	0	0
Recurring | Level 1 | Agency commercial mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	0	0
Recurring | Level 1 | Other securities
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	2	0
Securities available for sale	0	0
Recurring | Level 1 | Principal investments, Direct
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	0	0
Recurring | Level 1 | Principal Investments
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	0	0
Recurring | Level 1 | Equity Investments, Direct
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	3	24
Recurring | Level 1 | Equity Investments
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	3	24
Recurring | Level 2
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	1,060	683
Commercial loans	6	18
Total trading account assets	1,066	701
Securities available for sale	40,000	45,364
Total other investments	0	0
Loans, net of unearned income	0	0
Loans held for sale (residential)	61	281
Derivative assets, gross	2,148	2,136
Derivative assets, netting adjustments	0	0
Total derivative assets	2,148	2,136
Total assets on a recurring basis at fair value	43,275	48,482
LIABILITIES MEASURED ON A RECURRING BASIS
Total liabilities on a recurring basis at fair value	4,029	2,127
Recurring | Level 2 | Short positions
LIABILITIES MEASURED ON A RECURRING BASIS
Short positions	683	513
Recurring | Level 2 | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	3,346	1,614
Derivative liabilities, netting adjustments	0	0
Total derivative liabilities	3,346	1,614
Recurring | Level 2 | Interest rate
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	227	774
Recurring | Level 2 | Interest rate | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	1,429	253
Recurring | Level 2 | Foreign exchange
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	45	10
Recurring | Level 2 | Foreign exchange | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	45	10
Recurring | Level 2 | Commodity
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	1,857	1,330
Recurring | Level 2 | Commodity | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	1,838	1,335
Recurring | Level 2 | Credit
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	0	0
Recurring | Level 2 | Credit | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	0	5
Recurring | Level 2 | Other
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	20	22
Recurring | Level 2 | Other | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	34	11
Recurring | Level 2 | Agency residential collateralized mortgage obligations
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	17,237	21,119
Recurring | Level 2 | Mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	133	44
Recurring | Level 2 | U.S. Treasury, agencies and corporations
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	847	530
Securities available for sale	9,386	9,472
Recurring | Level 2 | States and political subdivisions
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	68	96
Securities available for sale	0	0
Recurring | Level 2 | Agency residential mortgage-backed securities | Mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	3,985	5,122
Recurring | Level 2 | Agency commercial mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	9,391	9,651
Recurring | Level 2 | Other securities
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	12	13
Securities available for sale	1	0
Recurring | Level 2 | Principal investments, Direct
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	0	0
Recurring | Level 2 | Principal Investments
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	0	0
Recurring | Level 2 | Equity Investments, Direct
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	0	0
Recurring | Level 2 | Equity Investments
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	0	0
Recurring | Level 3
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	0	0
Commercial loans	0	0
Total trading account assets	0	0
Securities available for sale	0	0
Total other investments	3	10
Loans, net of unearned income	9	11
Loans held for sale (residential)	0	0
Derivative assets, gross	(8)	39
Derivative assets, netting adjustments	0	0
Total derivative assets	(8)	39
Total assets on a recurring basis at fair value	4	60
LIABILITIES MEASURED ON A RECURRING BASIS
Total liabilities on a recurring basis at fair value	7	7
Recurring | Level 3 | Short positions
LIABILITIES MEASURED ON A RECURRING BASIS
Short positions	0	0
Recurring | Level 3 | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	7	7
Derivative liabilities, netting adjustments	0	0
Total derivative liabilities	7	7
Recurring | Level 3 | Interest rate
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	(8)	33
Recurring | Level 3 | Interest rate | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	0	0
Recurring | Level 3 | Foreign exchange
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	0	0
Recurring | Level 3 | Foreign exchange | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	0	0
Recurring | Level 3 | Commodity
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	0	0
Recurring | Level 3 | Commodity | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	0	0
Recurring | Level 3 | Credit
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross	0	1
Recurring | Level 3 | Credit | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	4	7
Recurring | Level 3 | Other
ASSETS MEASURED ON A RECURRING BASIS
Derivative assets, gross		5
Recurring | Level 3 | Other | Long positions
LIABILITIES MEASURED ON A RECURRING BASIS
Derivative liabilities, gross	3	0
Recurring | Level 3 | Agency residential collateralized mortgage obligations
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	0	0
Recurring | Level 3 | Mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	0	0
Recurring | Level 3 | U.S. Treasury, agencies and corporations
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	0	0
Securities available for sale	0	0
Recurring | Level 3 | States and political subdivisions
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	0	0
Securities available for sale	0	0
Recurring | Level 3 | Agency residential mortgage-backed securities | Mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	0	0
Recurring | Level 3 | Agency commercial mortgage-backed securities
ASSETS MEASURED ON A RECURRING BASIS
Securities available for sale	0	0
Recurring | Level 3 | Other securities
ASSETS MEASURED ON A RECURRING BASIS
Total trading account securities	0	0
Securities available for sale	0	0
Recurring | Level 3 | Principal investments, Direct
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	1	1
Recurring | Level 3 | Principal Investments
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	1	1
Recurring | Level 3 | Equity Investments, Direct
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	2	9
Recurring | Level 3 | Equity Investments
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	2	9
Recurring | Measured at NAV | Principal Investments, Indirect | Variable Interest Entity, Not Primary Beneficiary
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	36	45
Recurring | Measured at NAV | Equity Investments Direct, NAV
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	29	21
Recurring | Measured at NAV | Equity Investments Indirect, NAV
ASSETS MEASURED ON A RECURRING BASIS
Total other investments	$ 4	$ 5

Fair Value Measurements - Fai_2

Fair Value Measurements - Fair Value of Direct and Indirect Investments, Related Unfunded Commitments and Financial Support Provided (Details) - Principal Investments - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 37		$ 37
Unfunded Commitments	10		10
Funded Commitments	0	$ 0	0	$ 4
Funded Other	0	0	0	0
Direct investments
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	1		1
Unfunded Commitments	0		0
Funded Commitments	0	0	0	0
Funded Other	0	0	0	0
Indirect investments (measured at NAV)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	36		36
Unfunded Commitments	10		10
Funded Commitments	0	0	0	4
Funded Other	$ 0	$ 0	$ 0	$ 0

Fair Value Measurements - Chang

Fair Value Measurements - Change in Fair Values of Level 3 Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Other securities
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning of Period Balance		$ 22		$ 13
Gains (Losses) Included in Other Comprehensive Income		0		9
Gains (Losses) Included in Earnings		0		0
Purchases		0		0
Sales		0		0
Settlements		0		0
Transfers Other				0
Transfers into Level 3		0		0
Transfers out of Level 3				0
End of Period Balance		22		22
Unrealized Gains (Losses) Included in Earnings		0		0
Interest rate
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning of Period Balance	$ (3)	35	$ 33	56
Gains (Losses) Included in Other Comprehensive Income	0	0	0	0
Gains (Losses) Included in Earnings	(16)	(5)	(71)	(20)
Purchases	(3)	1	1	1
Sales	0	(1)	(2)	(7)
Settlements	0		0	0
Transfers Other	0		0	0
Transfers into Level 3	5	9	35	21
Transfers out of Level 3	9	(5)	(4)	(17)
End of Period Balance	(8)	34	(8)	34
Unrealized Gains (Losses) Included in Earnings	0		0	0
Credit
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning of Period Balance	(3)	(5)	(6)	(10)
Gains (Losses) Included in Other Comprehensive Income	0	0	0	0
Gains (Losses) Included in Earnings	0	0	2	4
Purchases	0	(1)	0	0
Sales	0	0	0
Settlements	0	0	0	0
Transfers Other	(1)	0	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0
End of Period Balance	(4)	(6)	(4)	(6)
Unrealized Gains (Losses) Included in Earnings	0	0	0	0
Other
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning of Period Balance	1	13	5	32
Gains (Losses) Included in Other Comprehensive Income	0	0	0	0
Gains (Losses) Included in Earnings	1	0	0	(3)
Purchases	0	0	0	0
Sales	0		0	0
Settlements	0	0	0	0
Transfers Other	(5)	(7)	(8)	(23)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
End of Period Balance	(3)	6	(3)	6
Unrealized Gains (Losses) Included in Earnings	0	0	0	0
Loans held for sale (residential)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning of Period Balance	0	0		0
Gains (Losses) Included in Other Comprehensive Income	0	0		0
Gains (Losses) Included in Earnings	0	0		0
Purchases	0	0		0
Sales	0	0		(1)
Settlements	0	0		0
Transfers Other	0	0		1
Transfers into Level 3	0	0		0
Transfers out of Level 3	0	0		0
End of Period Balance	0	0	0	0
Unrealized Gains (Losses) Included in Earnings	0	0		0
Loans, net of unearned income (residential)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning of Period Balance	11	11	11	11
Gains (Losses) Included in Other Comprehensive Income	0	0	0	0
Gains (Losses) Included in Earnings	(1)	0	(2)	0
Purchases	0	0	0	0
Sales	(1)	0	(1)	(2)
Settlements	0	0	0	0
Transfers Other	0	0	1	1
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
End of Period Balance	9	10	9	10
Unrealized Gains (Losses) Included in Earnings	0	0	0	0
Other investments
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning of Period Balance	6	9	9	13
Gains (Losses) Included in Other Comprehensive Income	0		0	0
Gains (Losses) Included in Earnings	0	0	(3)	(1)
Purchases	0		0	0
Sales	(4)		(4)	0
Settlements	0		0	0
Transfers Other	0		0	0
Transfers into Level 3	0		0	0
Transfers out of Level 3	0		0	(3)
End of Period Balance	2	9	2	9
Unrealized Gains (Losses) Included in Earnings	0	0	(3)	(1)
Other investments | Principal investments, Direct
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning of Period Balance	1	1	1	1
Gains (Losses) Included in Other Comprehensive Income	0	0	0	0
Gains (Losses) Included in Earnings	0	0	0	0
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Transfers Other	0	0	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
End of Period Balance	1	1	1	1
Unrealized Gains (Losses) Included in Earnings	$ 0	$ 0	$ 0	$ 0

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) - USD ($)	3 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other equity investments	$ 214,000,000	$ 173,000,000
Impairment loss	1,000,000,000,000
Loans, net of allowance	115,047,000,000	100,793,000,000
Education Lending | Discontinued operations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans at fair value	1,000,000	2,000,000
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans at fair value	9,000,000	11,000,000
Carrying Amount | Education Lending | Discontinued operations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, net of allowance	467,000,000	567,000,000
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans at fair value	9,000,000	11,000,000
Fair Value | Education Lending | Discontinued operations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, net of allowance	383,000,000	486,000,000
Fair Value | Nonrecurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities measured at fair value on non recurring basis	$ 0	$ 0

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Nonrecurring Basis (Details) - Nonrecurring - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
ASSETS MEASURED ON A NONRECURRING BASIS
Collateral-dependent loans	$ 69	$ 28
Loans held for sale	0	0
Accrued income and other assets	17	80
Total assets on a recurring basis at fair value	86	108
Level 1
ASSETS MEASURED ON A NONRECURRING BASIS
Collateral-dependent loans	0	0
Loans held for sale	0	0
Accrued income and other assets	0	0
Total assets on a recurring basis at fair value	0	0
Level 2
ASSETS MEASURED ON A NONRECURRING BASIS
Collateral-dependent loans	0	0
Loans held for sale	0	0
Accrued income and other assets	0	0
Total assets on a recurring basis at fair value	0	0
Level 3
ASSETS MEASURED ON A NONRECURRING BASIS
Collateral-dependent loans	69	28
Loans held for sale	0	0
Accrued income and other assets	17	80
Total assets on a recurring basis at fair value	$ 86	$ 108

Fair Value Measurements - Quant

Fair Value Measurements - Quantitative Information about Level 3 Fair Value Measurements (Details)	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Fair Value, Option, Quantitative Disclosures [Line Items]
Derivative assets	$ 1,601,000,000	$ 1,962,000,000
Mortgage servicing assets excluded from OREO	0	67,000,000
Recurring
Fair Value, Option, Quantitative Disclosures [Line Items]
Derivative assets	1,601,000,000	1,962,000,000
Nonrecurring
Fair Value, Option, Quantitative Disclosures [Line Items]
Impaired loans	69,000,000	28,000,000
Level 3
Fair Value, Option, Quantitative Disclosures [Line Items]
Insignificant level 3 assets, net of liabilities	(4,000,000)	9,000,000
Level 3 | Recurring
Fair Value, Option, Quantitative Disclosures [Line Items]
Derivative assets	(8,000,000)	39,000,000
Level 3 | Nonrecurring
Fair Value, Option, Quantitative Disclosures [Line Items]
Impaired loans	69,000,000	28,000,000
Valuation, Market Comparable Pricing | Level 3 | Recurring
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans, net of unearned income (residential)	$ 9,000,000	$ 11,000,000
Valuation, Market Comparable Pricing | Level 3 | Recurring | Measurement Input, Comparability Adjustment | Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans, net of unearned income (residential), measurement input	0.5347	0.6450
Valuation, Market Comparable Pricing | Level 3 | Recurring | Measurement Input, Comparability Adjustment | Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans, net of unearned income (residential), measurement input	0.8589	0.9730
Valuation, Market Comparable Pricing | Level 3 | Recurring | Measurement Input, Comparability Adjustment | Weighted Average
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans, net of unearned income (residential), measurement input	0.8088	0.9424
Valuation Technique, Discounted Cash Flow | Level 3 | Recurring | Interest rate
Fair Value, Option, Quantitative Disclosures [Line Items]
Derivative assets	$ (8,000,000)	$ 33,000,000
Valuation Technique, Discounted Cash Flow | Level 3 | Recurring | Interest rate | Measurement Input, Default Rate | Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Derivative assets, measurement input	0.0002	0.0002
Valuation Technique, Discounted Cash Flow | Level 3 | Recurring | Interest rate | Measurement Input, Default Rate | Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Derivative assets, measurement input	1	1
Valuation Technique, Discounted Cash Flow | Level 3 | Recurring | Interest rate | Measurement Input, Default Rate | Weighted Average
Fair Value, Option, Quantitative Disclosures [Line Items]
Derivative assets, measurement input	0.1490	0.0888
Valuation Technique, Discounted Cash Flow | Level 3 | Recurring | Interest rate | Measurement Input, Loss Given Default | Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Derivative assets, measurement input	0	0
Valuation Technique, Discounted Cash Flow | Level 3 | Recurring | Interest rate | Measurement Input, Loss Given Default | Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Derivative assets, measurement input	1	1
Valuation Technique, Discounted Cash Flow | Level 3 | Recurring | Interest rate | Measurement Input, Loss Given Default | Weighted Average
Fair Value, Option, Quantitative Disclosures [Line Items]
Derivative assets, measurement input	0.499	0.500
Valuation, Fair Value Of Underlying Collateral | Level 3 | Nonrecurring
Fair Value, Option, Quantitative Disclosures [Line Items]
Impaired loans	$ 69,000,000	$ 28,000,000
Valuation, Fair Value Of Underlying Collateral | Level 3 | Nonrecurring | Measurement Input, Discount Rate | Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Impaired loans, measurement input	0	0
Valuation, Fair Value Of Underlying Collateral | Level 3 | Nonrecurring | Measurement Input, Discount Rate | Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Impaired loans, measurement input	0.8500	0.1000
Valuation, Fair Value Of Underlying Collateral | Level 3 | Nonrecurring | Measurement Input, Discount Rate | Weighted Average
Fair Value, Option, Quantitative Disclosures [Line Items]
Impaired loans, measurement input	0.2600	0.0800
Valuation, Appraised Value | Level 3 | Nonrecurring
Fair Value, Option, Quantitative Disclosures [Line Items]
OREO and other Level 3 assets	$ 17,000,000	$ 13,000,000

Fair Value Measurements - Fai_3

Fair Value Measurements - Fair Value Disclosures of Financial Instruments (Details) - USD ($) $ in Millions		Sep. 30, 2022	Dec. 31, 2021
ASSETS
Trading account assets		$ 1,068	$ 701
Derivative assets		1,601	1,962
Securities available for sale		40,000	45,364
Held to maturity securities		8,163	7,539
Loans, net of unearned income		116,191	101,854
Loans held for sale	[1]	1,048	2,729
LIABILITIES
Long-term debt		18,257	12,042
Carrying Amount
ASSETS
Trading account assets		1,068	701
Other investments		1,272	639
Loans, net of unearned income (residential)		9	11
Loans held for sale		61	281
Securities available for sale		40,000	45,364
Held to maturity securities		8,163	7,539
Loans, net of unearned income		115,038	100,782
Loans held for sale		987	2,448
Short-term investments			0
Cash and short-term investments		5,613	11,923
LIABILITIES
Time deposits		5,847	3,858
Short-term borrowings		8,800	761
Long-term debt		18,257	12,042
Deposits with no stated maturity		139,008	148,714
Carrying Amount | Derivatives Not Designated as Hedging Instruments
ASSETS
Derivative assets		1,535	1,887
LIABILITIES
Derivative liabilities		1,590	157
Carrying Amount | Derivatives Designated as Hedging Instruments
ASSETS
Derivative assets		66	75
LIABILITIES
Derivative liabilities		10	4
Fair Value
ASSETS
Trading account assets		1,068	701
Other investments		1,272	639
Loans, net of unearned income (residential)		9	11
Loans held for sale		61	281
Securities available for sale		40,000	45,364
Held to maturity securities		7,596	7,665
Loans, net of unearned income		109,738	100,428
Loans held for sale		987	2,448
Short-term investments			0
Cash and short-term investments		5,613	11,923
LIABILITIES
Time deposits		5,837	3,866
Short-term borrowings		8,800	761
Long-term debt		17,598	12,518
Deposits with no stated maturity		139,008	148,714
Fair Value | Derivatives Not Designated as Hedging Instruments
ASSETS
Derivative assets		1,535	1,887
Derivative assets, Netting Adjustment		(809)	(320)
LIABILITIES
Derivative liabilities		1,590	157
Derivative liabilities, Netting Adjustment		(1,910)	(1,526)
Fair Value | Derivatives Designated as Hedging Instruments
ASSETS
Derivative assets		66	75
Derivative assets, Netting Adjustment		89	36
LIABILITIES
Derivative liabilities		10	4
Derivative liabilities, Netting Adjustment		(15)	0
Fair Value | Level 1
ASSETS
Trading account assets		2	0
Other investments		3	24
Loans, net of unearned income (residential)		0	0
Loans held for sale		0	0
Securities available for sale		0	0
Held to maturity securities		0	0
Loans, net of unearned income		0	0
Loans held for sale		0	0
Short-term investments			0
Cash and short-term investments		5,613	11,923
LIABILITIES
Time deposits		0	0
Short-term borrowings		143	75
Long-term debt		10,960	11,813
Deposits with no stated maturity		0	0
Fair Value | Level 1 | Derivatives Not Designated as Hedging Instruments
ASSETS
Derivative assets		181	71
LIABILITIES
Derivative liabilities		172	66
Fair Value | Level 1 | Derivatives Designated as Hedging Instruments
ASSETS
Derivative assets		0	0
LIABILITIES
Derivative liabilities		0	0
Fair Value | Level 2
ASSETS
Trading account assets		1,066	701
Other investments		0	0
Loans, net of unearned income (residential)		0	0
Loans held for sale		61	281
Securities available for sale		40,000	45,364
Held to maturity securities		7,596	7,665
Loans, net of unearned income		0	0
Loans held for sale		0	0
Short-term investments			0
Cash and short-term investments		0	0
LIABILITIES
Time deposits		5,837	3,866
Short-term borrowings		8,657	686
Long-term debt		6,638	705
Deposits with no stated maturity		139,008	148,714
Fair Value | Level 2 | Derivatives Not Designated as Hedging Instruments
ASSETS
Derivative assets		2,171	2,096
LIABILITIES
Derivative liabilities		3,321	1,610
Fair Value | Level 2 | Derivatives Designated as Hedging Instruments
ASSETS
Derivative assets		(23)	39
LIABILITIES
Derivative liabilities		25	4
Fair Value | Level 3
ASSETS
Trading account assets		0	0
Other investments		1,199	543
Loans, net of unearned income (residential)		9	11
Loans held for sale		0	0
Securities available for sale		0	0
Held to maturity securities		0	0
Loans, net of unearned income		109,738	100,428
Loans held for sale		987	2,448
Short-term investments			0
Cash and short-term investments		0	0
LIABILITIES
Time deposits		0	0
Short-term borrowings		0	0
Long-term debt		0	0
Deposits with no stated maturity		0	0
Fair Value | Level 3 | Derivatives Not Designated as Hedging Instruments
ASSETS
Derivative assets		(8)	40
LIABILITIES
Derivative liabilities		7	7
Fair Value | Level 3 | Derivatives Designated as Hedging Instruments
ASSETS
Derivative assets		0	0
LIABILITIES
Derivative liabilities		0	0
Fair Value | Measured at NAV
ASSETS
Other investments		$ 70	$ 72
[1]Total loans held for sale include real estate — residential mortgage loans held for sale at fair value of $61 million at September 30, 2022, and $281 million at December 31, 2021.

Securities - Details of Securit

Securities - Details of Securities (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
SECURITIES AVAILABLE FOR SALE
Amortized Cost	$ 46,291	$ 45,893
Gross Unrealized Gains	2	324
Gross Unrealized Losses	6,293	853
Fair Value	40,000	45,364
HELD-TO-MATURITY SECURITIES
Amortized Cost	8,163	7,539
Gross Unrealized Gains	1	157
Gross Unrealized Losses	568	31
Fair Value	7,596	7,665
Debt securities, available for sale, accrued interest	66	59
Debt securities, held to maturity, accrued interest	18	15
U.S. Treasury, agencies and corporations
SECURITIES AVAILABLE FOR SALE
Amortized Cost	10,062	9,573
Gross Unrealized Gains	0	0
Gross Unrealized Losses	676	101
Fair Value	9,386	9,472
Agency residential collateralized mortgage obligations
SECURITIES AVAILABLE FOR SALE
Amortized Cost	20,706	21,430
Gross Unrealized Gains	0	99
Gross Unrealized Losses	3,469	410
Fair Value	17,237	21,119
HELD-TO-MATURITY SECURITIES
Amortized Cost	3,818	2,196
Gross Unrealized Gains	0	33
Gross Unrealized Losses	251	0
Fair Value	3,567	2,229
Agency residential mortgage-backed securities
SECURITIES AVAILABLE FOR SALE
Amortized Cost	4,742	5,137
Gross Unrealized Gains	0	37
Gross Unrealized Losses	757	52
Fair Value	3,985	5,122
HELD-TO-MATURITY SECURITIES
Amortized Cost	185	164
Gross Unrealized Gains	0	6
Gross Unrealized Losses	18	0
Fair Value	167	170
Agency commercial mortgage-backed securities | Mortgage-backed securities
SECURITIES AVAILABLE FOR SALE
Amortized Cost	10,780	9,753
Gross Unrealized Gains	2	188
Gross Unrealized Losses	1,391	290
Fair Value	9,391	9,651
HELD-TO-MATURITY SECURITIES
Amortized Cost	2,524	2,678
Gross Unrealized Gains	1	118
Gross Unrealized Losses	190	0
Fair Value	2,335	2,796
Asset-backed securities
HELD-TO-MATURITY SECURITIES
Amortized Cost	1,621	2,485
Gross Unrealized Gains	0	0
Gross Unrealized Losses	108	31
Fair Value	1,513	2,454
Debt securities, held-to-maturity, purchase of senior notes	1,600	2,500
Other securities
SECURITIES AVAILABLE FOR SALE
Amortized Cost	1	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	1	0
HELD-TO-MATURITY SECURITIES
Amortized Cost	15	16
Gross Unrealized Gains	0	0
Gross Unrealized Losses	1	0
Fair Value	$ 14	$ 16

Securities - Available for Sale

Securities - Available for Sale Securities (Unrealized Loss Position) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Held-to-maturity securities:
Temporarily impaired securities, fair value, less than 12 months	$ 25,091	$ 29,680
Temporarily impaired securities, gross unrealized losses, less than 12 months	2,751	568
Temporarily impaired securities, fair value, 12 months or longer	22,266	5,511
Temporarily impaired securities, gross unrealized losses, 12 months or longer	4,110	316
Temporarily impaired securities, fair value	47,357	35,191
Temporarily impaired securities, gross unrealized losses	6,861	884
U.S. Treasury, agencies and corporations
Securities available for sale:
Fair value, less than 12 months	1,197	9,078
Gross unrealized losses, less than 12 months	94	98
Fair value, 12 months or longer	8,189	243
Gross unrealized losses, 12 months or longer	582	3
Fair value	9,386	9,321
Gross unrealized losses	676	101
Agency residential collateralized mortgage obligations
Securities available for sale:
Fair value, less than 12 months	9,673	12,603
Gross unrealized losses, less than 12 months	1,489	315
Fair value, 12 months or longer	7,562	1,255
Gross unrealized losses, 12 months or longer	1,980	95
Fair value	17,235	13,858
Gross unrealized losses	3,469	410
Held-to-maturity securities:
Fair value, less than 12 months	3,407	96
Gross unrealized losses, less than 12 months	250	0
Fair value, 12 months or longer	9	0
Gross unrealized losses, 12 months or longer	1	0
Fair value	3,416	96
Gross unrealized losses	251	0
Agency residential mortgage-backed securities
Held-to-maturity securities:
Fair value, less than 12 months	167
Gross unrealized losses, less than 12 months	18
Fair value, 12 months or longer	0
Gross unrealized losses, 12 months or longer	0
Fair value	167
Gross unrealized losses	18
Agency residential mortgage-backed securities | Maximum
Held-to-maturity securities:
Gross unrealized losses	1	1
Agency residential mortgage-backed securities | Mortgage-backed securities
Securities available for sale:
Fair value, less than 12 months	1,584	3,793
Gross unrealized losses, less than 12 months	219	49
Fair value, 12 months or longer	2,398	178
Gross unrealized losses, 12 months or longer	538	3
Fair value	3,982	3,971
Gross unrealized losses	757	52
Agency commercial mortgage-backed securities
Securities available for sale:
Fair value, less than 12 months	5,221	1,645
Gross unrealized losses, less than 12 months	383	75
Fair value, 12 months or longer	4,104	3,834
Gross unrealized losses, 12 months or longer	1,008	215
Fair value	9,325	5,479
Gross unrealized losses	1,391	290
Held-to-maturity securities:
Fair value, less than 12 months	2,324
Gross unrealized losses, less than 12 months	190
Fair value, 12 months or longer	0
Gross unrealized losses, 12 months or longer	0
Fair value	2,324
Gross unrealized losses	190
Asset-backed securities
Held-to-maturity securities:
Fair value, less than 12 months	1,511	2,450
Gross unrealized losses, less than 12 months	108	31
Fair value, 12 months or longer	1	1
Gross unrealized losses, 12 months or longer	0	0
Fair value	1,512	2,451
Gross unrealized losses	108	31
Other securities
Held-to-maturity securities:
Fair value, less than 12 months	7	15
Gross unrealized losses, less than 12 months	0	0
Fair value, 12 months or longer	3	0
Gross unrealized losses, 12 months or longer	1	0
Fair value	10	15
Gross unrealized losses	$ 1	$ 0

Securities - Additional Informa

Securities - Additional Information (Details) $ in Billions	Sep. 30, 2022 USD ($)
Investments, Debt and Equity Securities [Abstract]
Securities pledged to secure securities sold under repurchase agreements	$ 12.6

Securities - Securities by Matu

Securities - Securities by Maturity (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Amortized Cost of Securities Available for sale, Due in one year or less	$ 620
Amortized Cost of Securities Available for sale, Due after one through five years	16,918
Amortized Cost of Securities Available for sale, Due after five through ten years	21,439
Amortized Cost of Securities Available for sale, Due after ten years	7,314
Amortized Cost	46,291
Fair Value of Securities Available for sale, Due in one year or less	599
Fair Value of Securities Available for sale, Due after one through five years	15,566
Fair Value of Securities Available for sale, Due after five through ten years	17,962
Fair Value of Securities Available for sale, Due after ten years	5,873
Fair Value	40,000	$ 45,364
Amortized Cost of Held-to-Maturity Securities, Due in one year or less	24
Amortized Cost of Held-to-Maturity Securities, Due after one through five years	4,526
Amortized Cost of Held-to-Maturity Securities, Due after five through ten years	2,500
Amortized Cost of Held-to-Maturity Securities, Due after ten years	1,113
Amortized Cost	8,163	7,539
Fair Value of Held-to-Maturity Securities, Due in one year or less	23
Fair Value of Held-to-Maturity Securities, Due after one through five years	4,203
Fair Value of Held-to-Maturity Securities, Due after five through ten years	2,303
Fair Value of Held-to-Maturity Securities, Due after ten years	1,067
Total Fair Value of Held-to-Maturity Securities	$ 7,596	$ 7,665

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities - Additional Information (Details) $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($) derivative rating	Dec. 31, 2021 USD ($) rating
Credit Derivatives [Line Items]
Derivative assets after effects of bilateral collateral and master netting agreements	$ 66
Derivative liabilities after effects of bilateral collateral and master netting agreements	10
Derivative assets not designated as hedging instruments after effects of bilateral collateral and master netting agreements, and a reserve for potential future losses	1,500
Derivative liabilities not designated as hedging instruments after effects of bilateral collateral and master netting agreements, and a reserve for potential future losses	1,600
Reclassify of after-tax net gains on derivative instruments from AOCI	$ (566)
Length of time hedge in cash flow hedge (in months)	12 months
Reclassification of net losses related to terminated cash flow hedges from AOCI to income	$ (3)
Maximum length of time over which forecasted transactions are hedged (in years)	4 years 11 months 1 day
Cash collateral netted against derivative assets	$ (31)	$ 100
Collateral netted against derivative liabilities	1,200	1,100
Gross exposure on derivatives, after taking into account the effects of bilateral collateral and master netting agreements	443
Net exposure on derivatives, after taking into account, the effects of bilateral collateral and master netting agreements	244
Over-collateralization on derivatives to broker-dealers and banks, after the application of master netting agreements and collateral	243
Additional collateral held in the form of securities	1
Default reserve associated with uncollateralized contracts	25
Gross exposure on derivatives after taking into account effects of master netting agreements	1,500
Net exposure on derivatives with clients after application of master netting agreements collateral and related reserve	1,400
Net liability position totaled	3	$ 11
Banking Subsidiary
Credit Derivatives [Line Items]
Net liability position totaled	1,100
Derivative assets included in net liability position	315
Derivative liabilities included in net liability position	1,400
Cash and securities collateral posted	$ 1,100
Number of credit risk derivatives held | derivative	0
Banking Subsidiary | Unsecured Debt
Credit Derivatives [Line Items]
Number of ratings above noninvestment | rating	3	3
Banking Subsidiary | Unsecured Debt | Maximum
Credit Derivatives [Line Items]
Payments to terminate contracts (less than for the $1 million)	$ 2	$ 4

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities - Fair Values, Volume of Activity and Gain (Loss) Information Related to Derivative Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Notional Amount	$ 145,964	$ 137,761
Derivative assets, netting adjustments	(720)	(284)
Derivative Assets, net	1,601	1,961
Derivative liabilities, netting adjustments	(1,925)	(1,526)
Derivative Liabilities, net	1,588	161
Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	105,340	99,107
Derivative Assets	2,343	2,207
Derivative Liabilities	3,500	1,683
Interest rate | Derivatives Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	40,624	38,654
Derivative Assets	(22)	39
Derivative Liabilities	25	4
Interest rate | Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	78,319	72,088
Derivative Assets	241	768
Derivative Liabilities	1,404	249
Foreign exchange | Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	8,405	9,073
Derivative Assets	225	81
Derivative Liabilities	217	76
Commodity | Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	17,016	14,151
Derivative Assets	1,857	1,330
Derivative Liabilities	1,838	1,335
Credit | Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	116	465
Derivative Assets	0	1
Derivative Liabilities	4	12
Other
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Other | Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	1,484	3,330
Derivative Assets	20	27
Derivative Liabilities	37	11
Net derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	145,964	137,761
Derivative Assets, net	1,601	1,962
Derivative Liabilities, net	1,600	161
Other collateral
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets, net	0	(1)
Derivative Liabilities, net	$ (12)	$ 0

Derivatives and Hedging Activ_5

Derivatives and Hedging Activities - Cumulative Basis Adjustments on Fair Value Hedges (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Fair Value	$ 40,000	$ 45,364
Long-term debt | Interest rate
Derivatives, Fair Value [Line Items]
Carrying amount of hedged item	9,409	7,553
Hedge accounting basis adjustment	(606)	138
Long-term debt | Interest rate | Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Hedge accounting basis adjustment	(7)	(7)
Securities Available for Sale | Interest rate
Derivatives, Fair Value [Line Items]
Carrying amount of hedged item	405	6,280
Hedge accounting basis adjustment	51	134
Fair Value	$ 720	$ 7,700

Derivatives and Hedging Activ_6

Derivatives and Hedging Activities - Effect of Fair Value and Cash Flow Hedges on Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense — Long-term debt	$ (146)	$ (54)	$ (256)	$ (168)
Interest income — Loans	1,134	882	2,894	2,659
Interest Income - securities	196	135	557	398
Investment banking and debt placement fees	154	235	466	614
Net gain (loss) on cash flow hedging relationships
Net Gains (Losses) Reclassified From OCI Into Income	(65)	77	22	250
Interest rate | Interest expense – long-term debt | Fair Value Hedging
Net gains (losses) on fair value hedging relationships
Recognized on hedged items	359	37	744	210
Recognized on derivatives designated as hedging instruments	(367)	(8)	(710)	(113)
Net income (expense) recognized on fair value hedges	(8)	29	34	97
Interest rate | Interest expense – long-term debt | Cash Flow Hedging
Net gain (loss) on cash flow hedging relationships
Realized gains (losses) (pre-tax) reclassified from AOCI into net income	(1)	(1)	(3)	(3)
Net income (expense) recognized on cash flow hedges	(1)	(1)	(3)	(3)
Interest rate | Interest income – loans | Fair Value Hedging
Net gains (losses) on fair value hedging relationships
Recognized on hedged items	0	0	0	0
Recognized on derivatives designated as hedging instruments	0	0	0	0
Net income (expense) recognized on fair value hedges	0	0	0	0
Interest rate | Interest income – loans | Cash Flow Hedging
Net gain (loss) on cash flow hedging relationships
Realized gains (losses) (pre-tax) reclassified from AOCI into net income	(66)	79	16	253
Net Gains (Losses) Reclassified From OCI Into Income	(66)	79	16	253
Net income (expense) recognized on cash flow hedges	(66)	79	16	253
Interest rate | Interest Income - securities | Fair Value Hedging
Net gains (losses) on fair value hedging relationships
Recognized on hedged items	(14)	(38)	(341)	(147)
Recognized on derivatives designated as hedging instruments	16	39	350	147
Net income (expense) recognized on fair value hedges	2	1	9	0
Interest rate | Interest Income - securities | Cash Flow Hedging
Net gain (loss) on cash flow hedging relationships
Realized gains (losses) (pre-tax) reclassified from AOCI into net income	0	0	0	0
Net income (expense) recognized on cash flow hedges	0	0	0	0
Interest rate | Investment banking and debt placement fees | Fair Value Hedging
Net gains (losses) on fair value hedging relationships
Recognized on hedged items	0	0	0	0
Recognized on derivatives designated as hedging instruments	0	0	0	0
Net income (expense) recognized on fair value hedges	0	0	0	0
Interest rate | Investment banking and debt placement fees | Cash Flow Hedging
Net gain (loss) on cash flow hedging relationships
Net Gains (Losses) Reclassified From OCI Into Income	2	(1)	9	0
Net income (expense) recognized on cash flow hedges	$ 2	$ (1)	$ 9	$ 0

Derivatives and Hedging Activ_7

Derivatives and Hedging Activities - Derivative Instrument Cash Flow Hedge Earning Recognized by Income Statement Location (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivatives, Fair Value [Line Items]
Net Gains (Losses) Recognized in OCI	$ (706)	$ 2	$ (1,601)	$ (133)
Net Gains (Losses) Reclassified From OCI Into Income	(65)	77	22	250
Interest income – loans | Interest rate | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Net Gains (Losses) Recognized in OCI	(709)	(2)	(1,620)	(144)
Net Gains (Losses) Reclassified From OCI Into Income	(66)	79	16	253
Interest expense — Long-term debt | Interest rate | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Net Gains (Losses) Recognized in OCI	3	0	7	2
Net Gains (Losses) Reclassified From OCI Into Income	(1)	(1)	(3)	(3)
Investment banking and debt placement fees | Interest rate | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Net Gains (Losses) Recognized in OCI	0	4	12	9
Net Gains (Losses) Reclassified From OCI Into Income		(1)
Investment banking and debt placement fees | Interest rate | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Net Gains (Losses) Reclassified From OCI Into Income	$ 2	$ (1)	$ 9	$ 0

Derivatives and Hedging Activ_8

Derivatives and Hedging Activities - Pre-Tax Net Gains (Losses) on Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	$ 43	$ 16	$ 78	$ 35
Interest rate
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	9	8	43	20
Foreign exchange
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	12	12	37	34
Commodity
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	5	4	13	12
Credit
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	(17)	(8)	(31)	(22)
Other
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	34	0	16	(9)
Corporate services income
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	28	25	88	70
Corporate services income | Interest rate
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	11	8	37	19
Corporate services income | Foreign exchange
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	12	12	37	34
Corporate services income | Commodity
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	5	4	13	12
Corporate services income | Credit
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	0	1	1	5
Corporate services income | Other
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	0	0	0	0
Consumer mortgage income
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	4	0	2	13
Consumer mortgage income | Interest rate
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	0	0	0	0
Consumer mortgage income | Foreign exchange
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	0	0	0	0
Consumer mortgage income | Commodity
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	0	0	0	0
Consumer mortgage income | Credit
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	0	0	0	0
Consumer mortgage income | Other
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	4	0	2	13
Other income
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	11	(9)	(12)	(48)
Other income | Interest rate
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	(2)	0	6	1
Other income | Foreign exchange
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	0	0	0	0
Other income | Commodity
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	0	0	0	0
Other income | Credit
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	(17)	(9)	(32)	(27)
Other income | Other
Derivative Instruments, Gain (Loss) [Line Items]
Total net gains (losses)	$ 30	$ 0	$ 14	$ (22)

Derivatives and Hedging Activ_9

Derivatives and Hedging Activities - Fair Value of Derivative Assets by Type (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Credit Derivatives [Line Items]
Derivative assets before collateral	$ 1,632	$ 1,862
Plus(Less): Related collateral	(31)	100
Total derivative assets	1,601	1,962
Interest rate
Credit Derivatives [Line Items]
Derivative assets before collateral	163	696
Foreign exchange
Credit Derivatives [Line Items]
Derivative assets before collateral	127	31
Commodity
Credit Derivatives [Line Items]
Derivative assets before collateral	1,324	1,108
Credit
Credit Derivatives [Line Items]
Derivative assets before collateral	0	0
Other
Credit Derivatives [Line Items]
Derivative assets before collateral	$ 18	$ 27

Derivatives and Hedging Acti_10

Derivatives and Hedging Activities - Credit Derivatives Sold and Held (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Credit Derivatives [Line Items]
Notional Amount	$ 0	$ 149
Payment / Performance Risk	0%	0%
Other
Credit Derivatives [Line Items]
Notional Amount	$ 0	$ 149
Average Term (Years)	4 years 1 month 6 days	13 years 10 months 9 days
Payment / Performance Risk	5.54%	3.15%
Other | Maximum
Credit Derivatives [Line Items]
Notional Amount	$ 1

Derivatives and Hedging Acti_11

Derivatives and Hedging Activities - Credit Risk Contingent Feature (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Credit Derivatives [Line Items]
Additional collateral aggregate fair value	$ 1
Standard & Poor's, A- Rating | One rating downgrade
Credit Derivatives [Line Items]
Additional collateral aggregate fair value	1	$ 3
Standard & Poor's, A- Rating | Two rating downgrades
Credit Derivatives [Line Items]
Additional collateral aggregate fair value	1	3
Standard & Poor's, A- Rating | Three rating downgrades
Credit Derivatives [Line Items]
Additional collateral aggregate fair value	1	3
Moody's, A3 Rating | One rating downgrade
Credit Derivatives [Line Items]
Additional collateral aggregate fair value	1	3
Moody's, A3 Rating | Two rating downgrades
Credit Derivatives [Line Items]
Additional collateral aggregate fair value	1	3
Moody's, A3 Rating | Three rating downgrades
Credit Derivatives [Line Items]
Additional collateral aggregate fair value	$ 1	$ 3

Mortgage Servicing Assets - Cha

Mortgage Servicing Assets - Changes in Carrying Amount of Mortgage Servicing Assets (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Commercial Mortgage Backed Securities
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	$ 647	$ 600	$ 634	$ 578
Servicing retained from loan sales	26	31	78	88
Purchases	9	8	32	22
Amortization	(31)	(30)	(93)	(89)
Temporary (impairments) recoveries	0	0	0	10
Balance at end of period	651	609	651	609
Fair value at end of period	942	735	942	735
Agency residential mortgage-backed securities
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	104	77	93	58
Servicing retained from loan sales	4	9	21	32
Purchases	0	0	0	0
Amortization	(3)	(4)	(10)	(14)
Temporary (impairments) recoveries	0	3	1	9
Balance at end of period	105	85	105	85
Fair value at end of period	$ 127	$ 89	$ 127	$ 89

Mortgage Servicing Assets - Sch

Mortgage Servicing Assets - Schedule of Range and Weighted-Average of Significant Unobservable Inputs (Details) - Discounted cash flow - USD ($)	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Commercial Mortgage Backed Securities | Minimum
Servicing Assets at Fair Value [Line Items]
Expected defaults	0.98%	1%
Residual cash flows discount rate	8.43%	7.64%
Escrow earn rate	3.69%	1.04%
Loan assumption rate	0%	0%
Commercial Mortgage Backed Securities | Maximum
Servicing Assets at Fair Value [Line Items]
Expected defaults	2%	2%
Residual cash flows discount rate	10.17%	10.49%
Escrow earn rate	3.97%	1.37%
Loan assumption rate	1.50%	1.71%
Commercial Mortgage Backed Securities | Weighted Average
Servicing Assets at Fair Value [Line Items]
Expected defaults	1.08%	1.15%
Residual cash flows discount rate	9.52%	9.31%
Escrow earn rate	3.87%	1.04%
Loan assumption rate	1.19%	1.40%
Agency residential mortgage-backed securities | Minimum
Servicing Assets at Fair Value [Line Items]
Residual cash flows discount rate	7.50%	7.50%
Prepayment speed	7.05%	8.03%
Servicing cost	$ 62	$ 62
Agency residential mortgage-backed securities | Maximum
Servicing Assets at Fair Value [Line Items]
Residual cash flows discount rate	8.53%	8.57%
Prepayment speed	44.74%	48.88%
Servicing cost	$ 4,375	$ 4,375
Agency residential mortgage-backed securities | Weighted Average
Servicing Assets at Fair Value [Line Items]
Residual cash flows discount rate	7.53%	7.54%
Prepayment speed	8.09%	11.67%
Servicing cost	$ 66.59	$ 68.15

Mortgage Servicing Assets - Add

Mortgage Servicing Assets - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Commercial Mortgage Backed Securities
Servicing Assets at Fair Value [Line Items]
Contractual fee income from servicing commercial mortgage loans	$ 219	$ 193
Amortization of servicing commercial mortgage loans	93	89
Residential mortgage-backed securities
Servicing Assets at Fair Value [Line Items]
Contractual fee income from servicing commercial mortgage loans	27	30
Amortization of servicing commercial mortgage loans	$ 10	$ 14

Leases (Details)

Leases (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Sales-type and direct financing leases
Interest income on lease receivable	$ 16	$ 13	$ 47	$ 59
Interest income related to accretion of unguaranteed residual asset	3	9	11	12
Total sales-type and direct financing lease income	19	22	58	71
Operating leases
Operating lease income related to lease payments	25	31	81	95
Other operating leasing gains	(6)	6	(2)	16
Total operating lease income and other leasing gains	19	37	79	111
Total lease income	$ 38	$ 59	$ 137	$ 182

Goodwill (Details)

Goodwill (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2021	Sep. 30, 2022
Goodwill [Roll Forward]
Beginning balance	$ 2,673	$ 2,693
Goodwill acquired	20	58
XUP acquisition measurement period adjustment		1
Ending balance	2,693	2,752
Consumer Bank
Goodwill [Roll Forward]
Beginning balance	1,761	1,761
Goodwill acquired	0	58
XUP acquisition measurement period adjustment		0
Ending balance	1,761	1,819
Commercial Bank
Goodwill [Roll Forward]
Beginning balance	912	932
Goodwill acquired	20	0
XUP acquisition measurement period adjustment		1
Ending balance	$ 932	$ 933

Variable Interest Entities - Ad

Variable Interest Entities - Additional Information (Details) - USD ($)	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Variable Interest Entity [Line Items]
VIE, assets that can only be used to settle obligations	$ 190,051,000,000		$ 186,346,000,000
VIE, liabilities	176,761,000,000		168,923,000,000
Recurring
Variable Interest Entity [Line Items]
Other investments	75,000,000		105,000,000
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
VIE, assets that can only be used to settle obligations	2,002,000,000		2,827,000,000
VIE, liabilities	1,000,000		1,000,000
Tax credit of investment		$ 139,000,000
Variable Interest Entity, Not Primary Beneficiary | Qualified affordable housing projects investment
Variable Interest Entity [Line Items]
VIE, liabilities	845,000,000		675,000,000
Variable Interest Entity, Not Primary Beneficiary | Other Unconsolidated Variable Interest Entities
Variable Interest Entity [Line Items]
Other investments	1,600,000,000
Variable Interest Entity, Not Primary Beneficiary | Accrued Income And Other Assets
Variable Interest Entity [Line Items]
VIE, assets that can only be used to settle obligations	1,800,000,000		1,600,000,000
Variable Interest Entity, Not Primary Beneficiary | Investments
Variable Interest Entity [Line Items]
Amortization of investment	142,000,000	$ 147,000,000
Tax credit of investment	138,000,000
Variable Interest Entity, Primary Beneficiary | Investments
Variable Interest Entity [Line Items]
VIE, assets that can only be used to settle obligations	0		0
VIE, liabilities	0		0
Measured at NAV | Variable Interest Entity, Not Primary Beneficiary | Recurring | Principal Investments, Indirect
Variable Interest Entity [Line Items]
Other investments	$ 36,000,000		$ 45,000,000

Variable Interest Entities - Su

Variable Interest Entities - Summary of Variable Interest Entities Information (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Total Assets	$ 190,051	$ 186,346
Total Liabilities	176,761	168,923
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total Assets	2,002	2,827
Total Liabilities	1	1
Variable Interest Entity, Not Primary Beneficiary | LIHTC investments
Variable Interest Entity [Line Items]
Total Assets	7,344	7,839
Total Liabilities	2,469	3,252
Maximum Exposure to Loss	2,242	1,985
Variable Interest Entity, Not Primary Beneficiary | Principal Investments, Indirect
Variable Interest Entity [Line Items]
Total Assets	6,968	8,437
Total Liabilities	92	178
Maximum Exposure to Loss	$ 46	$ 57

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Dec. 31, 2021
Income Tax Contingency [Line Items]
Effective tax rate (as a percent)	18.70%	20.40%
Combined federal and state statutory tax rate (as a percent)			23.70%
Valuation allowance	$ 11		$ 11	$ 12
First Niagara Bank, N.A.
Income Tax Contingency [Line Items]
Allocated bad debt deductions	92		92
Key Corp
Income Tax Contingency [Line Items]
Unrecognized tax benefits	46		46
Accrued Income And Other Assets
Income Tax Contingency [Line Items]
Net deferred tax assets	$ 1,900		$ 1,900	$ 189

Acquisitions and Discontinued_2

Acquisitions and Discontinued Operations (Details) - USD ($) $ in Millions			3 Months Ended	9 Months Ended
	May 02, 2022	Nov. 19, 2021	Dec. 31, 2021	Sep. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill acquired			$ 20	$ 58
Discontinued operations | Government Guaranteed Loans
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loans included in divestiture			$ 567	$ 467
XUP
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill acquired		$ 20.6
GradFin
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill acquired	$ 58
Business combination, consideration transferred	72
Cash payment	62
Contingent consideration	10
Intangible assets acquired	$ 12

Securities Financing Activiti_3

Securities Financing Activities (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Securities Financing Transaction [Line Items]
Reverse repurchase agreements	$ 0	$ 0
Securities borrowed	0	0
Total	0	0
Repurchase agreements	0	0
Total	0	0
Collateral
Securities Financing Transaction [Line Items]
Reverse repurchase agreements	0	(5)
Securities borrowed	(500)	(500)
Total	(500)	(505)
Repurchase agreements	(70)	(167)
Total	(70)	(167)
Federal Agency CMOs
Securities Financing Transaction [Line Items]
Assets pledged as collateral	128
Liabilities pledged as collateral	70
Gross Amount Presented in Balance Sheet
Securities Financing Transaction [Line Items]
Reverse repurchase agreements	52	11
Securities borrowed	500	500
Total	552	511
Repurchase agreements	122	173
Total	122	173
Netting Adjustments
Securities Financing Transaction [Line Items]
Reverse repurchase agreements	(52)	(6)
Securities borrowed	0	0
Total	(52)	(6)
Repurchase agreements	(52)	(6)
Total	$ (52)	$ (6)

Employee Benefits - Net Pension

Employee Benefits - Net Pension Cost (Benefit) for All Funded and Unfunded Plans (Details) - Pension Plans - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Interest cost on PBO	$ 7	$ 6	$ 20	$ 18
Expected return on plan assets	(7)	(7)	(20)	(21)
Amortization of losses	4	5	11	14
Settlement loss	0	7	0	7
Net pension cost	$ 4	$ 11	$ 11	$ 18

Trust Preferred Securities Is_3

Trust Preferred Securities Issued by Unconsolidated Subsidiaries (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Stock	$ 1,257	$ 1,257
Debentures adjustments related to financial instrument hedging	17	52
KeyCorp Capital I
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Trust preferred securities, net of discount	156
Common Stock	6
Principal amount of of debentures, net of discount	$ 162
Interest rate of Trust preferred securities and debentures (as a percent)	3.017%
KeyCorp Capital I | London Interbank Offered Rate (LIBOR)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Basis spread on variable rate	0.74%
KeyCorp Capital II
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Trust preferred securities, net of discount	$ 95
Common Stock	4
Principal amount of of debentures, net of discount	$ 99
Interest rate of Trust preferred securities and debentures (as a percent)	6.875%
KeyCorp Capital II | Treasury Rate
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Basis spread on variable rate	0.20%
KeyCorp Capital III
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Trust preferred securities, net of discount	$ 107
Common Stock	4
Principal amount of of debentures, net of discount	$ 111
Interest rate of Trust preferred securities and debentures (as a percent)	7.75%
KeyCorp Capital III | Treasury Rate
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Basis spread on variable rate	0.25%
HNC Statutory Trust III
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Trust preferred securities, net of discount	$ 20
Common Stock	1
Principal amount of of debentures, net of discount	$ 21
Interest rate of Trust preferred securities and debentures (as a percent)	4.38%
HNC Statutory Trust III | London Interbank Offered Rate (LIBOR)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Basis spread on variable rate	1.40%
Willow Grove Statutory Trust I
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Trust preferred securities, net of discount	$ 20
Common Stock	1
Principal amount of of debentures, net of discount	$ 21
Interest rate of Trust preferred securities and debentures (as a percent)	4.062%
Willow Grove Statutory Trust I | London Interbank Offered Rate (LIBOR)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Basis spread on variable rate	1.31%
HNC Statutory Trust IV
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Trust preferred securities, net of discount	$ 18
Common Stock	1
Principal amount of of debentures, net of discount	$ 19
Interest rate of Trust preferred securities and debentures (as a percent)	4.603%
HNC Statutory Trust IV | London Interbank Offered Rate (LIBOR)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Basis spread on variable rate	1.28%
Westbank Capital Trust II
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Trust preferred securities, net of discount	$ 8
Common Stock	0
Principal amount of of debentures, net of discount	$ 8
Interest rate of Trust preferred securities and debentures (as a percent)	5.717%
Westbank Capital Trust III
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Trust preferred securities, net of discount	$ 8
Common Stock	0
Principal amount of of debentures, net of discount	$ 8
Interest rate of Trust preferred securities and debentures (as a percent)	5.717%
Business Trusts
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Trust preferred securities, net of discount	$ 432	466
Common Stock	17	17
Principal amount of of debentures, net of discount	$ 449	$ 483
Interest rate of Trust preferred securities and debentures (as a percent)	5.316%	4.271%
Keycorp Capital II and III | Redemption upon either tax or a capital treatment event | Treasury Rate
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Basis spread on variable rate	0.50%
Westbank Capital Trust II and III | London Interbank Offered Rate (LIBOR)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Basis spread on variable rate	2.19%

Contingent Liabilities and Gu_3

Contingent Liabilities and Guarantees - Guarantees (Details) $ in Millions	Sep. 30, 2022 USD ($)
Guarantor Obligations [Line Items]
Maximum Potential Undiscounted Future Payments	$ 18,304
Liability Recorded	375
Written put options
Guarantor Obligations [Line Items]
Maximum Potential Undiscounted Future Payments	3,883
Liability Recorded	251
Standby letters of credit
Guarantor Obligations [Line Items]
Maximum Potential Undiscounted Future Payments	4,473
Liability Recorded	84
Recourse agreement with FNMA
Guarantor Obligations [Line Items]
Maximum Potential Undiscounted Future Payments	6,650
Liability Recorded	26
Residential mortgage reserve
Guarantor Obligations [Line Items]
Maximum Potential Undiscounted Future Payments	3,298
Liability Recorded	$ 14

Contingent Liabilities and Gu_4

Contingent Liabilities and Guarantees - Additional Information (Details) $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($)
Written put options
Commitments Contingencies And Guarantees [Line Items]
Weighted average life of written put options (in years)	1 year 9 months 18 days
Standby letters of credit
Commitments Contingencies And Guarantees [Line Items]
Remaining weighted-average life of standby letters of credit (in years)	1 year 8 months 12 days
Recourse agreement with FNMA
Commitments Contingencies And Guarantees [Line Items]
Weighted-average remaining term for outstanding commercial mortgage loans (in years)	7 years 6 months
Unpaid principal balance outstanding of loans sold	$ 21,700
Maximum potential amount of undiscounted future payments possibly required as percentage of principal balance of loans outstanding (as a percent)	30.70%
Residential mortgage reserve
Commitments Contingencies And Guarantees [Line Items]
Unpaid principal balance outstanding of loans sold	$ 11,000
Maximum potential amount of undiscounted future payments possibly required as percentage of principal balance of loans outstanding (as a percent)	30%
Liability for estimated repurchase obligations on loans sold	$ 14
Minimum | Standby letters of credit
Commitments Contingencies And Guarantees [Line Items]
Remaining actual life of standby letters of credit (in years)	1 year
Minimum | Low
Commitments Contingencies And Guarantees [Line Items]
Guarantee obligations (as a percent)	0%
Minimum | Moderate
Commitments Contingencies And Guarantees [Line Items]
Guarantee obligations (as a percent)	30%
Minimum | High
Commitments Contingencies And Guarantees [Line Items]
Guarantee obligations (as a percent)	70%
Maximum | Standby letters of credit
Commitments Contingencies And Guarantees [Line Items]
Remaining actual life of standby letters of credit (in years)	12 years 2 months 12 days
Maximum | Low
Commitments Contingencies And Guarantees [Line Items]
Guarantee obligations (as a percent)	30%
Maximum | Moderate
Commitments Contingencies And Guarantees [Line Items]
Guarantee obligations (as a percent)	70%

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income - Changes in AOCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 14,427	$ 17,941	$ 17,423	$ 17,981
Other comprehensive income before reclassification, net of income taxes	(2,144)	(145)	(5,662)	(608)
Amounts reclassified from AOCI, net of income taxes	53	(50)	(9)	(175)
Total other comprehensive income (loss), net of tax	(2,091)	(195)	(5,671)	(783)
Ending balance	13,290	17,510	13,290	17,510
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(4,166)	150	(586)	738
Total other comprehensive income (loss), net of tax	(2,091)	(195)	(5,671)	(783)
Ending balance	(6,257)	(45)	(6,257)	(45)
Unrealized gains (losses) on securities available for sale
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3,167)	124	(403)	567
Other comprehensive income before reclassification, net of income taxes	(1,616)	(174)	(4,380)	(617)
Amounts reclassified from AOCI, net of income taxes	0	0	0	0
Total other comprehensive income (loss), net of tax	(1,616)	(174)	(4,380)	(617)
Ending balance	(4,783)	(50)	(4,783)	(50)
Unrealized gains (losses) on derivative financial instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(733)	325	88	476
Other comprehensive income before reclassification, net of income taxes	(527)	30	(1,281)	11
Amounts reclassified from AOCI, net of income taxes	50	(59)	(17)	(191)
Total other comprehensive income (loss), net of tax	(477)	(29)	(1,298)	(180)
Ending balance	(1,210)	296	(1,210)	296
Net pension and postretirement benefit costs
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(266)	(299)	(271)	(305)
Other comprehensive income before reclassification, net of income taxes	(1)	(1)	(1)	(2)
Amounts reclassified from AOCI, net of income taxes	3	9	8	16
Total other comprehensive income (loss), net of tax	2	8	7	14
Ending balance	$ (264)	$ (291)	$ (264)	$ (291)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income - Reclassifications Out of AOCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income — Loans	$ 1,134	$ 882	$ 2,894	$ 2,659
Interest expense — Long-term debt	(146)	(54)	(256)	(168)
Investment banking and debt placement fees	154	235	466	614
Income taxes	124	165	346	501
Net pension and postretirement benefit costs	655	640	1,892	1,887
INCOME (LOSS) FROM CONTINUING OPERATIONS	540	643	1,517	1,985
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains (losses) on derivative financial instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment banking and debt placement fees	2	(1)	9	0
Income (loss) from continuing operations before income taxes	(65)	77	22	250
Income taxes	(15)	18	5	59
INCOME (LOSS) FROM CONTINUING OPERATIONS	(50)	59	17	191
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains (losses) on derivative financial instruments | Interest income – loans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income — Loans	(66)	79	16	253
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains (losses) on derivative financial instruments | Interest expense — Long-term debt
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense — Long-term debt	(1)	(1)	(3)	(3)
Reclassification out of Accumulated Other Comprehensive Income | Amortization of losses
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net pension and postretirement benefit costs	(4)	(5)	(11)	(14)
Reclassification out of Accumulated Other Comprehensive Income | Settlement loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net pension and postretirement benefit costs	0	(7)	0	(7)
Reclassification out of Accumulated Other Comprehensive Income | Amortization of unrecognized prior service credit
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net pension and postretirement benefit costs			1	0
Reclassification out of Accumulated Other Comprehensive Income | Net pension and postretirement benefit costs
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before income taxes	(4)	(12)	(10)	(21)
Income taxes	(1)	(3)	(2)	(5)
INCOME (LOSS) FROM CONTINUING OPERATIONS	$ (3)	$ (9)	$ (8)	$ (16)

Shareholders' Equity - Comprehe

Shareholders' Equity - Comprehensive Capital Plan (Details) - USD ($) $ / shares in Units, $ in Billions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jul. 31, 2021
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cash dividends declared on Common Shares (in usd per share)	$ 0.195	$ 0.185	$ 0.585	$ 0.555
Employee Equity Compensation Programs
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Stock repurchase program, amount authorized (up to)					$ 1.5
2021 Capital Plan
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cash dividends declared on Common Shares (in usd per share)	$ 0.195

Shareholders' Equity - Schedule

Shareholders' Equity - Schedule of Preferred Stock (Details)	9 Months Ended
	Sep. 30, 2022 USD ($) $ / shares shares
Series D Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate (as a percent)	5%
Preferred stock, amount outstanding | $	$ 525,000,000
Preferred stock, shares authorized (in shares) | shares	21,000
Preferred stock, shares outstanding (in shares) | shares	21,000
Preferred stock, par value (in usd per share)	$ 1
Preferred stock, liquidation preference, value | $	$ 25,000
Depository Shares, Series D
Class of Stock [Line Items]
Depository receipt ratio	0.04
Preferred stock, liquidation preference (in usd per share)	$ 1,000
Dividend payable per share (in usd per share)	$ 12.50
Series E Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate (as a percent)	6.125%
Preferred stock, amount outstanding | $	$ 500,000,000
Preferred stock, shares authorized (in shares) | shares	500,000
Preferred stock, shares outstanding (in shares) | shares	500,000
Preferred stock, par value (in usd per share)	$ 1
Preferred stock, liquidation preference, value | $	$ 1,000
Depository Shares, Series E
Class of Stock [Line Items]
Depository receipt ratio	0.025
Preferred stock, liquidation preference (in usd per share)	$ 25
Dividend payable per share (in usd per share)	$ 0.382813
Series F Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate (as a percent)	5.65%
Preferred stock, amount outstanding | $	$ 425,000,000
Preferred stock, shares authorized (in shares) | shares	425,000
Preferred stock, shares outstanding (in shares) | shares	425,000
Preferred stock, par value (in usd per share)	$ 1
Preferred stock, liquidation preference, value | $	$ 1,000
Depository Shares, Series F
Class of Stock [Line Items]
Depository receipt ratio	0.025
Preferred stock, liquidation preference (in usd per share)	$ 25
Dividend payable per share (in usd per share)	$ 0.353125
Series G Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate (as a percent)	5.625%
Preferred stock, amount outstanding | $	$ 450,000,000
Preferred stock, shares authorized (in shares) | shares	450,000
Preferred stock, shares outstanding (in shares) | shares	450,000
Preferred stock, par value (in usd per share)	$ 1
Preferred stock, liquidation preference, value | $	$ 1,000
Depository Shares, Series G
Class of Stock [Line Items]
Depository receipt ratio	0.025
Preferred stock, liquidation preference (in usd per share)	$ 25
Dividend payable per share (in usd per share)	$ 0.351563
Series H Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate (as a percent)	6.20%
Preferred stock, amount outstanding | $	$ 600,000,000
Preferred stock, shares authorized (in shares) | shares	600,000
Preferred stock, shares outstanding (in shares) | shares	600,000
Preferred stock, par value (in usd per share)	$ 1
Preferred stock, liquidation preference, value | $	$ 1,000
Depository Shares, Series H
Class of Stock [Line Items]
Preferred stock, liquidation preference (in usd per share)	$ 25
Dividend payable per share (in usd per share)	$ 0

Business Segment Reporting - Ad

Business Segment Reporting - Additional Information (Details)	Sep. 30, 2022 branch
Consumer Bank
Segment Reporting Information [Line Items]
Number of state branch networks	15
Commercial Bank
Segment Reporting Information [Line Items]
Number of state branch networks	15

Business Segment Reporting - Sc

Business Segment Reporting - Schedule of Segment Reporting Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) employee	Sep. 30, 2021 USD ($) employee	Sep. 30, 2022 USD ($) employee	Sep. 30, 2021 USD ($) employee
SUMMARY OF OPERATIONS
Net interest income (TE)	$ 1,203	$ 1,025	$ 3,327	$ 3,060
Noninterest income	683	797	2,047	2,285
Total revenue (TE)	1,886	1,822	5,374	5,345
Provision for credit losses	109	(107)	237	(422)
Depreciation and amortization expense	68	75	207	226
Other noninterest expense	1,038	1,037	3,047	3,033
Income (loss) from continuing operations before income taxes (TE)	671	817	1,883	2,508
Allocated income taxes and TE adjustments	131	174	366	523
INCOME (LOSS) FROM CONTINUING OPERATIONS	540	643	1,517	1,985
Income (loss) from discontinued operations, net of taxes	2	2	6	11
NET INCOME (LOSS)	542	645	1,523	1,996
Less: Net income (loss) attributable to noncontrolling interests	0	0	0	0
NET INCOME (LOSS) ATTRIBUTABLE TO KEY	542	645	1,523	1,996
AVERAGE BALANCES
Loans and leases	114,418	100,138	109,144	100,562
Total assets	188,192	181,371	184,789	177,194
Deposits	144,229	146,916	147,266	143,023
OTHER FINANCIAL DATA
Net loan charge-offs	$ 43	$ 29	$ 120	$ 165
Return on average allocated equity, continuing operations (as a percent)	14.66%	14.25%	13.29%	14.87%
Return on average allocated equity (as a percent)	14.71%	14.30%	13.35%	14.96%
Average full-time equivalent employees | employee	17,907	17,009	17,477	17,034
Operating Segments | Consumer Bank
SUMMARY OF OPERATIONS
Net interest income (TE)	$ 632	$ 582	$ 1,745	$ 1,789
Noninterest income	259	288	769	798
Total revenue (TE)	891	870	2,514	2,587
Provision for credit losses	37	(38)	88	(132)
Depreciation and amortization expense	22	23	65	61
Other noninterest expense	645	568	1,941	1,717
Income (loss) from continuing operations before income taxes (TE)	187	317	420	941
Allocated income taxes and TE adjustments	45	76	101	226
INCOME (LOSS) FROM CONTINUING OPERATIONS	142	241	319	715
Income (loss) from discontinued operations, net of taxes	0	0	0	0
NET INCOME (LOSS)	142	241	319	715
Less: Net income (loss) attributable to noncontrolling interests	0	0	0	0
NET INCOME (LOSS) ATTRIBUTABLE TO KEY	142	241	319	715
AVERAGE BALANCES
Loans and leases	42,568	39,854	40,697	39,954
Total assets	45,638	43,039	43,782	43,165
Deposits	90,044	89,278	90,939	87,667
OTHER FINANCIAL DATA
Net loan charge-offs	$ 17	$ 35	$ 62	$ 105
Return on average allocated equity, continuing operations (as a percent)	16.20%	25.81%	11.90%	26.70%
Return on average allocated equity (as a percent)	16.20%	25.81%	11.90%	26.70%
Average full-time equivalent employees | employee	8,114	7,976	8,013	8,062
Operating Segments | Commercial Bank
SUMMARY OF OPERATIONS
Net interest income (TE)	$ 495	$ 407	$ 1,347	$ 1,234
Noninterest income	394	477	1,192	1,379
Total revenue (TE)	889	884	2,539	2,613
Provision for credit losses	74	(69)	152	(267)
Depreciation and amortization expense	28	34	89	101
Other noninterest expense	422	436	1,184	1,263
Income (loss) from continuing operations before income taxes (TE)	365	483	1,114	1,516
Allocated income taxes and TE adjustments	70	104	218	322
INCOME (LOSS) FROM CONTINUING OPERATIONS	295	379	896	1,194
Income (loss) from discontinued operations, net of taxes	0	0	0	0
NET INCOME (LOSS)	295	379	896	1,194
Less: Net income (loss) attributable to noncontrolling interests	0	0	0	0
NET INCOME (LOSS) ATTRIBUTABLE TO KEY	295	379	896	1,194
AVERAGE BALANCES
Loans and leases	71,464	59,856	68,016	60,287
Total assets	81,898	69,227	78,536	69,536
Deposits	52,272	56,401	54,768	54,309
OTHER FINANCIAL DATA
Net loan charge-offs	$ 27	$ (6)	$ 59	$ 81
Return on average allocated equity, continuing operations (as a percent)	12.63%	18.02%	13.37%	18.65%
Return on average allocated equity (as a percent)	12.63%	18.02%	13.37%	18.65%
Average full-time equivalent employees | employee	2,523	2,371	2,441	2,371
Other
SUMMARY OF OPERATIONS
Net interest income (TE)	$ 76	$ 36	$ 235	$ 37
Noninterest income	30	32	86	108
Total revenue (TE)	106	68	321	145
Provision for credit losses	(2)	0	(3)	(23)
Depreciation and amortization expense	18	18	53	64
Other noninterest expense	(29)	33	(78)	53
Income (loss) from continuing operations before income taxes (TE)	119	17	349	51
Allocated income taxes and TE adjustments	16	(6)	47	(25)
INCOME (LOSS) FROM CONTINUING OPERATIONS	103	23	302	76
Income (loss) from discontinued operations, net of taxes	2	2	6	11
NET INCOME (LOSS)	105	25	308	87
Less: Net income (loss) attributable to noncontrolling interests	0	0	0	0
NET INCOME (LOSS) ATTRIBUTABLE TO KEY	105	25	308	87
AVERAGE BALANCES
Loans and leases	386	428	431	321
Total assets	60,656	69,105	62,471	64,493
Deposits	1,913	1,237	1,559	1,047
OTHER FINANCIAL DATA
Net loan charge-offs	$ (1)	$ 0	$ (1)	$ (21)
Return on average allocated equity, continuing operations (as a percent)	21.83%	1.56%	14.88%	1.78%
Return on average allocated equity (as a percent)	22.25%	1.70%	15.17%	2.04%
Average full-time equivalent employees | employee	7,270	6,662	7,023	6,601

Revenue from Contracts with C_3

Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 377	$ 490	$ 1,137	$ 1,303
Noninterest income	683	797	2,047	2,285
Contract assets	0	0	0	0
Contract liabilities	0	0	0	0
Trust and investment services income
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	118	121	365	360
Investment banking and debt placement fees
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	102	169	316	367
Services charges on deposit accounts
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	92	91	279	247
Cards and payments income
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	62	107	169	322
Other noninterest income
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	3	2	8	7
Noninterest income	276	275	824	874
Operating Segments | Consumer Bank
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	200	209	605	596
Operating Segments | Consumer Bank | Trust and investment services income
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	99	105	307	311
Operating Segments | Consumer Bank | Investment banking and debt placement fees
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating Segments | Consumer Bank | Services charges on deposit accounts
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	56	56	170	145
Operating Segments | Consumer Bank | Cards and payments income
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	42	46	120	135
Operating Segments | Consumer Bank | Other noninterest income
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	3	2	8	5
Operating Segments | Commercial Bank
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	177	281	532	707
Operating Segments | Commercial Bank | Trust and investment services income
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	19	16	58	49
Operating Segments | Commercial Bank | Investment banking and debt placement fees
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	102	169	316	367
Operating Segments | Commercial Bank | Services charges on deposit accounts
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	36	35	109	102
Operating Segments | Commercial Bank | Cards and payments income
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	20	61	49	187
Operating Segments | Commercial Bank | Other noninterest income
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	2
Other
Disaggregation of Revenue [Line Items]
Noninterest income	$ 30	$ 32	$ 86	$ 108