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v3.25.3

Business Combinations and Discontinued Operations - Business Combination (Details) $ / shares in Units, $ in Millions | May 18, 2025 USD ($) $ / shares shares | Sep. 30, 2025 USD ($) shares | Dec. 31, 2024 USD ($) shares
--- | --- | --- | ---
Business Combination [Line Items] |  |  |
Shares of Discover common stock issued immediately prior to the acquisition (in shares) | shares |  | 707,690,438 | 702,224,674
Shares of Discover common stock outstanding immediately prior to the acquisition (in shares) | shares |  | 635,733,605 | 381,230,343
Preliminary fair value of liabilities assumed: |  |  |
Goodwill |  | $ 28,863 | $ 15,059
Discover |  |  |
Business Combination [Line Items] |  |  |
Shares of Discover common stock issued immediately prior to the acquisition (in shares) | shares | 1.0192 |  |
Exchange ratio | 1.0192 |  |
Number of shares of Capital One treasury stock reissued in the acquisition before fractional shares adjustment (in shares) | shares | 256,511,991 |  |
Less: Number of fractional shares (in shares) | shares | (14,778) |  |
Number of shares of Capital One treasury stock issued in the acquisition (in shares) | shares | 256,497,213 |  |
Price per share of Capital One common stock (in usd per share) | $ / shares | $ 197.22 |  |
Fair value of purchase consideration | $ 51,793 |  |
Preliminary fair value of assets acquired: |  |  |
Cash and cash equivalents and Restricted cash for securitization investors | 16,467 |  |
Securities available for sale | 14,108 |  |
Net loans held for investment (see Table 2.3) | 108,609 |  |
Premises and equipment | 956 |  |
Interest receivable | 926 |  |
Intangible assets (see Table 2.4) | 17,610 |  |
Other assets | 1,448 |  |
Assets of discontinued operations | 7,981 |  |
Preliminary fair value of liabilities assumed: |  |  |
Interest payable | 347 |  |
Non-interest-bearing deposits | 1,710 |  |
Interest-bearing deposits (see Table 2.5) | 105,208 |  |
Securitized debt obligations | 5,827 |  |
Senior and subordinated notes | 6,917 |  |
Other borrowings | 538 |  |
Deferred tax liability | 3,455 |  |
Other liabilities | 6,088 |  |
Preliminary fair value of net assets acquired | 38,015 |  |
Goodwill | 13,778 |  |
Business combination, recognized asset acquired, home loans, discontinued operations | 7,900 |  |
Discover | Securitization Investors |  |  |
Preliminary fair value of liabilities assumed: |  |  |
Restricted cash | 1,000 |  |
Discover | Common Stock |  |  |
Business Combination [Line Items] |  |  |
Fair value of purchase consideration | 50,586 |  |
Discover | Preferred Stock |  |  |
Business Combination [Line Items] |  |  |
Fair value of purchase consideration | 1,068 |  |
Discover | Award |  |  |
Business Combination [Line Items] |  |  |
Fair value of purchase consideration | 136 |  |
Discover | Lieu of Fractional Shares |  |  |
Business Combination [Line Items] |  |  |
Fair value of purchase consideration | $ 3 |  |
Discover | Discover |  |  |
Business Combination [Line Items] |  |  |
Shares of Discover common stock issued immediately prior to the acquisition (in shares) | shares | 251,679,740 |  |
Shares of Discover common stock outstanding immediately prior to the acquisition (in shares) | shares | 251,679,740 |  |

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