XML 45 R34.htm IDEA: XBRL DOCUMENT
v3.21.2

Commitments, Contingencies, Guarantees, and Others (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Letter of Credit and Other Loan Commitments | The following table presents the contractual amount and carrying value of our unfunded lending commitments as of June 30, 2021 and December 31, 2020. The carrying value represents our reserve and deferred revenue on legally binding commitments. Table 13.1: Unfunded Lending Commitments
|  | Contractual Amount |  | Carrying Value
(Dollars in millions) |  | June 30, 2021 |  | December 31, 2020 |  | June 30, 2021 |  | December 31, 2020
Credit card lines |  | $ | 354,098 |  |  | $ | 349,594 |  |  | N/A |  | N/A
Other loan commitments(1) |  | 38,922 |  |  | 35,836 |  |  | $ | 120 |  |  | $ | 144 |
Standby letters of credit and commercial letters of credit(2) |  | 1,290 |  |  | 1,302 |  |  | 27 |  |  | 32 |
Total unfunded lending commitments |  | $ | 394,310 |  |  | $ | 386,732 |  |  | $ | 147 |  |  | $ | 176 |
__________ (1)Includes $2.6 billion and $1.8 billion of advised lines of credit as of June 30, 2021 and December 31, 2020, respectively. (2)These financial guarantees have expiration dates that range from 2021 to 2023 as of June 30, 2021.

X
- Definition Schedule of Letter of credit and other loan commitments + References No definition available. + Details
Name: | cof_ScheduleofLetterofCreditandOtherLoanCommitmentsTableTextBlock
Namespace Prefix: | cof_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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