XML 96 R53.htm IDEA: XBRL DOCUMENT
v3.25.4

Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract] |
Schedule of Activity and Pricing Information for Nonvested Shares in Long-Term Incentive Compensation Program | The following table summarizes activity and pricing information for the nonvested shares in the Program for the year ended December 31, 2025.
| Vesting Contingent on Service Conditions |  | Vesting Contingent on Performance and Service Conditions - Payable in Stock |  | Vesting Contingent on Performance and Service Conditions - Payable in Cash
| Number of Nonvested Shares | Weighted- Average Grant-Date Fair Value |  | Number of Nonvested Shares | Weighted- Average Grant-Date Fair Value |  | Number of Nonvested Shares | Weighted- Average Grant-Date Fair Value
Outstanding at December 31, 2024 | 14,995,501 |  | $ | 17.66 |  |  | 1,440,087 |  | $ | 15.42 |  |  | 5,420,941 |  | $ | 19.70 |
Granted | 7,306,761 |  | 17.72 |  |  | 68,991 |  | 15.42 |  |  | 1,575,553 |  | 20.82 |
Vested | (5,552,419) |  | 18.82 |  |  | — |  | — |  |  | (36,078) |  | 19.02 |
Forfeited(a) | (461,624) |  | 17.53 |  |  | — |  | — |  |  | (3,682,521) |  | 18.52 |
Outstanding at December 31, 2025 | 16,288,219 |  | $ | 17.27 |  |  | 1,509,078 |  | $ | 15.42 |  |  | 3,277,895 |  | $ | 20.99 |
(a)Includes awards that did not vest
Schedule of Assumptions Used in Options Pricing Model | The assumptions pertaining to options issued during 2025, 2024, and 2023 are shown in the following table.
Year ended December 31, | 2025 | 2024 | 2023
Average option life | 7.0 years | 7.0 years | 6.7 years
Future dividend yield | 4.55 | % | 5.75 | % | 4.28 | %
Historical share price volatility | .410 |  | .422 |  | .347 |
Weighted-average risk-free interest rate | 4.5 | % | 4.2 | % | 3.9 | %
Schedule of Activity, Pricing and Other Information for Stock Options | The following table summarizes activity, pricing and other information for our stock options for the year ended December 31, 2025:
| Number of Options | Weighted-Average Exercise Price Per Option | Weighted-Average Remaining Life (in years) | Aggregate Intrinsic Value(a)
Outstanding at December 31, 2024 | 4,378,773 |  | $ | 18.73 |  | 4.6 | $ | 5 |
Granted | 427,986 |  | 19.49 |  |  |
Exercised | (655,461) |  | 12.99 |  |  |
Lapsed or canceled | (281,661) |  | 19.75 |  |  |
Outstanding at December 31, 2025 | 3,869,637 |  | $ | 19.71 |  | 5.1 | $ | 7 |
Expected to vest | 1,157,330 |  | 19.14 |  | 7.9 | 3 |
Exercisable at December 31, 2025 | 2,672,495 |  | $ | 19.98 |  | 3.8 | $ | 4 |
(a)The intrinsic value of a stock option is the amount by which the fair value of the underlying stock exceeds the exercise price of the option.
Schedule of Activity and Pricing Information for Nonvested Shares Granted Under Deferred Compensation Plans and Other Restricted Stock Awards | The following table summarizes activity and pricing information for the nonvested shares granted under our deferred compensation plans and these other restricted stock or unit award programs for the year ended December 31, 2025.
| Number of Nonvested Shares | Weighted-Average Grant-Date Fair Value
Outstanding at December 31, 2024 | 2,296,263 |  | $ | 16.28 |
Granted | 575,556 |  | 16.61 |
Vested | (854,963) |  | 18.29 |
Forfeited | (40,228) |  | 14.05 |
Outstanding at December 31, 2025 | 1,976,628 |  | $ | 15.50 |

X
- Definition Activity and Pricing Information For Nonvested Shares In Deferred Compensation Plans and Other Restricted Stock Awards [Table Text Block] + References No definition available. + Details
Name: | key_ActivityAndPricingInformationForNonvestedSharesInDeferredCompensationPlansAndOtherRestrictedStockAwardsTableTextBlock
Namespace Prefix: | key_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Activity and pricing information for nonvested shares in long term incentive compensation program. + References No definition available. + Details
Name: | key_ActivityandPricingInformationForNonvestedSharesinLongTermIncentiveCompensationProgramTextBlockTableTextBlock
Namespace Prefix: | key_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration