Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2025

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. 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. Additional details of our revenue recognition policies and components of our noninterest income line items is provided within Note 1 (“Summary of Significant Accounting Policies”) under the heading “Revenue Recognition.”

Year ended December 31,	2025
Dollars in millions	Consumer Bank		Commercial Bank		Total Contract Revenue
NONINTEREST INCOME
Trust and investment services income	$	483	$	75	$	558
Investment banking and debt placement fees	—		551		551
Services charges on deposit accounts	144		151		295
Cards and payments income	175		162		337
Other noninterest income	8		—		8
Total revenue from contracts with customers	$	810	$	939	$	1,749
Other noninterest income (a)					$	953
Noninterest income from other segments (b)					140
Total noninterest income					$	2,842
Year ended December 31,	2024
Dollars in millions	Consumer Bank		Commercial Bank		Total Contract Revenue
NONINTEREST INCOME
Trust and investment services income	$	449	$	69	$	518
Investment banking and debt placement fees	—		521		521
Services charges on deposit accounts	135		126		261
Cards and payments income	178		153		331
Other noninterest income	12		—		12
Total revenue from contracts with customers	$	774	$	869	$	1,643
Other noninterest income (a)					$	910
Noninterest income from other segments (b)					(1,744)
Total noninterest income					$	809
Year ended December 31,	2023
Dollars in millions	Consumer Bank		Commercial Bank		Total Contract Revenue
NONINTEREST INCOME
Trust and investment services income	$	410	$	68	$	478
Investment banking and debt placement fees	—		344		344
Services charges on deposit accounts	158		111		269
Cards and payments income	187		145		332
Other noninterest income	12		—		12
Total revenue from contracts with customers	$	767	$	668	$	1,435
Other noninterest income (a)					$	931
Noninterest income from other segments (b)					104
Total noninterest income					$	2,470

(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. Corporate treasury includes realized gains and loss from transaction associated with Key’s investment securities portfolio. 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 23 (“Business Segment Reporting”) for more information.