XML 59 R43.htm IDEA: XBRL DOCUMENT
v3.22.4

Deposits (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Deposits [Abstract] |
Schedule Of Maturities Of Certificates of Deposit and Other Deposits with a Stated Maturity | At December 31, 2022, the scheduled maturities of certificates of deposit and other deposits with a stated maturity were as follows:
(in millions) |
Years Ending December 31 |
2023 | $ | 1,789 |
2024 | 88 |
2025 | 24 |
2026 | 18 |
2027 | 13 |
Thereafter | 5 |
Total | $ | 1,937 |
Schedule Of Maturities Of Domestic Deposits Of $100,000 Or More | A maturity distribution of domestic certificates of deposit of $100,000 and over follows:
(in millions) |  |  |
December 31 | 2022 |  | 2021
Three months or less | $ | 220 |  |  | $ | 436 |
Over three months to six months | 136 |  |  | 314 |
Over six months to twelve months | 590 |  |  | 319 |
Over twelve months | 49 |  |  | 74 |
Total | $ | 995 |  |  | $ | 1,143 |
The aggregate amount of domestic certificates of deposit that meet or exceed the current FDIC insurance limit of $250,000 was $478 million and $627 million at December 31, 2022 and 2021, respectively. All foreign office time deposits were in denominations of $250,000 or more and totaled $51 million and $50 million at December 31, 2022 and 2021, respectively

X
- Definition Schedule of contractual maturities of domestic time deposits (which include certificates of deposits, individual retirement accounts and open accounts in domestic offices), in denominations of $100,000 or more. + References No definition available. + Details
Name: | cma_ScheduleOfContractualMaturitiesOfTimeDepositsOfOneHundredThousandOrMoreTextBlock
Namespace Prefix: | cma_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of contractual obligation by timing of payment due. Includes, but is not limited to, long-term debt obligation, lease obligation, and purchase obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 303 -Paragraph (a) -Subparagraph (5) + Details
Name: | srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock
Namespace Prefix: | srt_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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