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v3.25.3

Preferred stock - Summary of Preferred Dividends Paid (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Class of Stock [Line Items] |  |  |  |  |
Preferred dividends paid | $ 106 | $ 32 | $ 72 | $ 209 | $ 169
Series A Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Depositary shares per share | 1.00% |  |  | 1.00% |
Dividend paid per share (usd per share) | $ 1,344.8 | $ 1,311.33 | $ 1,577.81 | $ 3,951.3 | $ 4,718.27
Preferred dividends paid | $ 7 | $ 7 | $ 8 | $ 21 | $ 24
Series F Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Depositary shares per share | 1.00% |  |  | 1.00% |
Dividend paid per share (usd per share) | $ 2,312.5 | $ 0 | $ 2,312.5 | $ 4,625 | $ 4,625
Preferred dividends paid | $ 23 | $ 0 | $ 23 | $ 46 | $ 46
Series G Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Depositary shares per share | 1.00% |  |  | 1.00% |
Dividend paid per share (usd per share) | $ 2,350 | $ 0 | $ 2,350 | $ 4,700 | $ 4,700
Preferred dividends paid | $ 34 | $ 0 | $ 23 | $ 58 | $ 47
Preferred stock, redemption amount | $ 10 |  |  | $ 10 |
Series H Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Depositary shares per share | 1.00% |  |  | 1.00% |
Dividend paid per share (usd per share) | $ 925.00 | $ 925.00 | $ 925.00 | $ 2,775 | $ 2,775
Preferred dividends paid | $ 6 | $ 5 | $ 6 | $ 16 | $ 16
Series I Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Depositary shares per share | 1.00% |  |  | 1.00% |
Dividend paid per share (usd per share) | $ 937.50 | $ 937.50 | $ 937.50 | $ 2,812.5 | $ 2,812.5
Preferred dividends paid | $ 12 | $ 12 | $ 12 | $ 36 | $ 36
Series J Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Depositary shares per share | 1.00% |  |  | 1.00% |
Dividend paid per share (usd per share) | $ 3,325 | $ 0 |  | $ 3,325 |
Preferred dividends paid | $ 16 | $ 0 |  | $ 16 |
Series K Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Depositary shares per share | 0.03% |  |  | 0.03% |
Dividend paid per share (usd per share) | $ 1,537.5 | $ 1,640 |  | $ 3,177.5 |
Preferred dividends paid | $ 8 | $ 8 |  | $ 16 |

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