XML 68 R43.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Derivative And Credit-Related Financial Instruments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule Of Derivative Instruments | The following table presents the composition of the Corporation’s derivative instruments held or issued for risk management purposes or in connection with customer-initiated and other activities at December 31, 2024 and 2023. The table excludes a derivative related to the Corporation's 2008 sale of its remaining ownership of Visa shares and includes accrued interest receivable and payable.
| December 31, 2024 |  | December 31, 2023
|  |  | Fair Value |  |  |  | Fair Value
(in millions) | Notional/ Contract Amount (a) |  | Gross Derivative Assets |  | Gross Derivative Liabilities |  | Notional/ Contract Amount (a) |  | Gross Derivative Assets |  | Gross Derivative Liabilities
Risk management purposes |  |  |  |  |  |  |  |  |  |  |
Derivatives designated as hedging instruments |  |  |  |  |  |  |  |  |  |  |
Interest rate contracts: |  |  |  |  |  |  |  |  |  |  |
Fair value swaps - receive fixed/pay floating | $ | 6,800 |  |  | $ | — |  |  | $ | — |  |  | $ | 6,300 |  |  | $ | — |  |  | $ | — |
Cash flow swaps - receive fixed/ pay floating (b) | 23,350 |  |  | — |  |  | 3 |  |  | 24,850 |  |  | — |  |  | 8 |
Derivatives used as economic hedges |  |  |  |  |  |  |  |  |  |  |
Foreign exchange contracts: |  |  |  |  |  |  |  |  |  |  |
Spot, forwards and swaps | 453 |  |  | 3 |  |  | — |  |  | 560 |  |  | 1 |  |  | 3 |
Total risk management purposes | 30,603 |  |  | 3 |  |  | 3 |  |  | 31,710 |  |  | 1 |  |  | 11 |
Customer-initiated and other activities |  |  |  |  |  |  |  |  |  |  |
Interest rate contracts: |  |  |  |  |  |  |  |  |  |  |
Caps and floors written | 1,781 |  |  | — |  |  | 12 |  |  | 1,577 |  |  | — |  |  | 18 |
Caps and floors purchased | 1,781 |  |  | 12 |  |  | — |  |  | 1,577 |  |  | 18 |  |  | — |
Swaps | 19,189 |  |  | 165 |  |  | 320 |  |  | 19,316 |  |  | 207 |  |  | 409 |
Total interest rate contracts | 22,751 |  |  | 177 |  |  | 332 |  |  | 22,470 |  |  | 225 |  |  | 427 |
Energy contracts: |  |  |  |  |  |  |  |  |  |  |
Caps and floors written | 3,460 |  |  | — |  |  | 201 |  |  | 3,719 |  |  | 3 |  |  | 291 |
Caps and floors purchased | 3,460 |  |  | 202 |  |  | — |  |  | 3,719 |  |  | 292 |  |  | 3 |
Swaps | 6,338 |  |  | 214 |  |  | 199 |  |  | 6,368 |  |  | 463 |  |  | 442 |
Total energy contracts | 13,258 |  |  | 416 |  |  | 400 |  |  | 13,806 |  |  | 758 |  |  | 736 |
Foreign exchange contracts: |  |  |  |  |  |  |  |  |  |  |
Spot, forwards, options and swaps | 3,117 |  |  | 70 |  |  | 59 |  |  | 2,751 |  |  | 35 |  |  | 32 |
Total customer-initiated and other activities | 39,126 |  |  | 663 |  |  | 791 |  |  | 39,027 |  |  | 1,018 |  |  | 1,195 |
Total gross derivatives | $ | 69,729 |  |  | 666 |  |  | 794 |  |  | $ | 70,737 |  |  | 1,019 |  |  | 1,206 |
Amounts offset in the Consolidated Balance Sheets: |  |  |  |  |  |  |  |  |  |  |
Netting adjustment - Offsetting derivative assets/liabilities |  |  | (330) |  |  | (330) |  |  |  |  | (311) |  |  | (311) |
Netting adjustment - Cash collateral received/posted |  |  | (80) |  |  | — |  |  |  |  | (143) |  |  | (13) |
Net derivatives included in the Consolidated Balance Sheets (c) |  |  | 256 |  |  | 464 |  |  |  |  | 565 |  |  | 882 |
Amounts not offset in the Consolidated Balance Sheets: |  |  |  |  |  |  |  |  |  |  |
Marketable securities pledged under bilateral collateral agreements |  |  | (143) |  |  | (2) |  |  |  |  | (501) |  |  | (4) |
Net derivatives after deducting amounts not offset in the Consolidated Balance Sheets |  |  | $ | 113 |  |  | $ | 462 |  |  |  |  | $ | 64 |  |  | $ | 878 |
(a)Notional or contractual amounts, which represent the extent of involvement in the derivatives market, are used to determine the contractual cash flows required in accordance with the terms of the agreement. These amounts are typically not exchanged, significantly exceed amounts subject to credit or market risk and are not reflected on the Consolidated Balance Sheets. (b)December 31, 2023 included $2 billion of forward starting swaps that became effective on their contractual start dates in 2024. There were no forward starting swaps at December 31, 2024. (c)Net derivative assets are included in accrued income and other assets and net derivative liabilities are included in accrued expenses and other liabilities on the Consolidated Balance Sheets. Included in the fair value of net derivative assets and net derivative liabilities are credit valuation adjustments reflecting counterparty credit risk and credit risk of the Corporation. The fair value of net derivative assets included credit valuation adjustments for counterparty credit risk of $1 million and $3 million at December 31, 2024 and 2023, respectively.
Schedule of Effects of Fair Value Hedging on the Consolidated Statements of Comprehensive Income | The following table details the effects of fair value hedging on the Consolidated Statements of Comprehensive Income.
(in millions) | Interest on Medium- and Long-Term Debt
Years Ended December 31 | 2024 |  | 2023 |  | 2022
Total interest on medium-and long-term debt (a) | $ | 463 |  |  | $ | 378 |  |  | $ | 87 |
Fair value hedging relationships: |  |  |  |  |
Interest rate contracts: |  |  |  |  |
Hedged items | 335 |  |  | 265 |  |  | 112 |
Derivatives designated as hedging instruments | 128 |  |  | 113 |  |  | (25) |
(a)Includes the effects of hedging.
Schedule Of Weighted Average Maturity And Interest Rates On Risk Management Cash Flow Swaps | The following tables summarize the expected weighted average remaining maturity of the notional amount of risk management interest rate swaps, the weighted average interest rates associated with amounts expected to be received or paid on interest rate swap agreements, and for fair value swaps, the carrying amount of the related hedged items, as of December 31, 2024 and 2023. Cash flow swaps - receive fixed/pay floating rate on variable-rate loans (a)
(dollar amounts in millions) | December 31, 2024 |  | December 31, 2023
Weighted average: |  |  |
Time to maturity (in years) | 3.1 |  |  | 3.9 |
Receive rate (b) | 2.55 | % |  | 2.43 | %
Pay rate (b), (c) | 4.55 |  |  | 5.38 |
(a)December 31, 2023 included $7.0 billion of de-designated interest rate swaps. (b)Excludes 2.0 billion of forward starting swaps not effective as of December 31, 2023. There were no forward starting swaps at December 31, 2024. (c)Variable rates paid on receive fixed swaps designated as cash flow hedges were based on SOFR rates in effect at December 31, 2024 and BSBY or SOFR rates in effect at December 31, 2023.
Schedule Of Weighted Average Maturity And Interest Rates On Risk Management Fair Value Swaps | Fair value swaps - receive fixed/pay floating rate on medium- and long-term debt
(dollar amounts in millions) | December 31, 2024 |  | December 31, 2023
Carrying value of hedged items (a) | $ | 6,673 |  |  | $ | 6,206 |
Weighted average: |  |  |
Time to maturity (in years) | 2.6 |  |  | 3.1 |
Receive rate | 3.77 | % |  | 3.67 | %
Pay rate (b) | 4.80 |  |  | 5.74 |
(a)Included $(122) million and $(93) million of cumulative hedging adjustments at December 31, 2024 and 2023, respectively, which included $2 million and $3 million, respectively, of hedging adjustment on a discontinued hedging relationship. (b)Floating rates paid on receive fixed swaps designated as fair value hedges were based on SOFR rates in effect at December 31, 2024 and December 31, 2023.
Schedule Of Net Gains Recognized In Income On Customer-Initiated Derivatives | The net gains recognized in income on customer-initiated derivative instruments, net of the impact of offsetting positions included in derivative income, were as follows:
| Years Ended December 31,
(in millions) | 2024 |  | 2023 |  | 2022
Interest rate contracts | $ | 21 |  |  | $ | 22 |  |  | $ | 34 |
Energy contracts | 19 |  |  | 25 |  |  | 28 |
Foreign exchange contracts | 47 |  |  | 51 |  |  | 47 |
Total | $ | 87 |  |  | $ | 98 |  |  | $ | 109 |
Schedule Of Financial Instruments With Off-Balance Sheet Credit Risk | The Corporation’s credit risk associated with these instruments is represented by the contractual amounts indicated in the following table.
(in millions) |  |  |
December 31 | 2024 |  | 2023
Unused commitments to extend credit: |  |  |
Commercial and other | $ | 24,342 |  |  | $ | 27,303 |
Bankcard, revolving credit and home equity loan commitments | 4,055 |  |  | 4,082 |
Total unused commitments to extend credit | $ | 28,397 |  |  | $ | 31,385 |
Standby letters of credit | $ | 4,138 |  |  | $ | 3,586 |
Commercial letters of credit | 12 |  |  | 48 |
Summary Of Criticized Letters Of Credit | The following table presents a summary of criticized standby and commercial letters of credit at December 31, 2024 and 2023. The Corporation's criticized list is consistent with the Special Mention, Substandard and Doubtful categories defined by regulatory authorities. The Corporation manages credit risk through underwriting, periodically reviewing and approving its credit exposures using Board committee approved credit policies and guidelines.
(dollar amounts in millions) | December 31, 2024 |  | December 31, 2023
Total criticized standby and commercial letters of credit | $ | 37 |  |  | $ | 50 |
As a percentage of total outstanding standby and commercial letters of credit | 0.9 | % |  | 1.4 | %

X
- Definition Schedule of financial instruments, excluding certain derivatives, with off-balance sheet credit risk (for example, unused commitments, standby letters of credit or financial guarantees). + References No definition available. + Details
Name: | cma_CreditRiskFinancialInstrumentsOffBalanceSheetRiskTableTextBlock
Namespace Prefix: | cma_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition [Table Text Block] for Effects of fair value hedging of the derivative instruments used for managing interest rate risk on the Consolidated Statements o Comprehensive Income [Table] + References No definition available. + Details
Name: | cma_EffectsoffairvaluehedgingontheConsolidatedStatementsoComprehensiveIncomeTableTextBlock
Namespace Prefix: | cma_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Location and amount of gains (losses) recognized in income related to customer-initiated derivative instruments, net of the impact of offsetting positions. + References No definition available. + Details
Name: | cma_ScheduleOfCustomerInitiatedDerivativesGainsLossesRecognizedInIncomeLocationTableTextBlock
Namespace Prefix: | cma_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total internally classified watch list standby and commercial letters of credit (generally consistent with regulatory defined special mention, substandard and doubtful). + References No definition available. + Details
Name: | cma_ScheduleOfInternallyClassifiedWatchListLettersOfCreditTextBlock
Namespace Prefix: | cma_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule Of Weighted Average Maturity And Interest Rates On Risk Management Cash Flow Swaps + References No definition available. + Details
Name: | cma_ScheduleOfWeightedAverageMaturityAndInterestRatesOnRiskManagementCashFlowSwapsTableTextBlock
Namespace Prefix: | cma_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average remaining maturity of the notional amount of risk management interest rate swaps and weighted average interest rates. + References No definition available. + Details
Name: | cma_ScheduleOfWeightedAverageMaturityAndInterestRatesOnRiskManagementFairValueSwapsTableTextBlock
Namespace Prefix: | cma_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration