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v3.25.3

Preferred stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Mar. 31, 2025 | Sep. 30, 2025 | Dec. 31, 2024
Class of Stock [Line Items] |  |  |  |
Preferred stock, shares authorized (shares) | 100,000,000 |  | 100,000,000 | 100,000,000
Preferred stock, par value (usd per share) | $ 0.01 |  | $ 0.01 | $ 0.01
Preferred stock, percentage ownership by subsidiary | 1 |  | 1 |
Series J Preferred Stock |  |  |  |
Class of Stock [Line Items] |  |  |  |
Depository share, shares issued (in shares) |  | 500,000 |  |
Depositary shares per share | 1.00% |  | 1.00% |
Redemption period following a regulatory capital treatment event |  |  | 90 days |
Liquidation preference per share (usd per share) | $ 100,000 |  | $ 100,000 |
Series K Preferred Stock |  |  |  |
Class of Stock [Line Items] |  |  |  |
Depository share, shares issued (in shares) |  | 20,000,000 |  |
Depositary shares per share | 0.03% |  | 0.03% |
Redemption period following a regulatory capital treatment event |  |  | 90 days |
Liquidation preference per share (usd per share) | $ 100,000 |  | $ 100,000 |
Series G Preferred Stock |  |  |  |
Class of Stock [Line Items] |  |  |  |
Preferred stock, redemption amount | $ 10 |  | $ 10 |
Depositary shares per share | 1.00% |  | 1.00% |
Liquidation preference per share (usd per share) | $ 100,000 |  | $ 100,000 |
Series L Preferred Stock |  |  |  |
Class of Stock [Line Items] |  |  |  |
Depository share, shares issued (in shares) | 500,000 |  |  |
Depositary shares per share | 1.00% |  | 1.00% |
Redemption period following a regulatory capital treatment event |  |  | 90 days |
Liquidation preference per share (usd per share) | $ 100,000 |  | $ 100,000 |

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- Definition Line items represent financial concepts included in a table. 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