Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Billions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Cash and Cash Equivalents [Line Items] | ||
| Cash and due from banks | $ 2.0 | $ 1.3 |
| Russia | ||
| Cash and Cash Equivalents [Line Items] | ||
| Cash and due from banks | $ 1.3 | $ 0.8 |