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v3.25.3

Preferred stock - Summary (Details) - USD ($) $ / shares in Units, $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Class of Stock [Line Items] |  |
Total shares issued and outstanding (shares) | 48,826 | 43,826
Carrying value | $ 4,836 | $ 4,343
Series A Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred stock, basis spread on variable rate | 0.565% |
Per annum dividend rate | 4.00% |
Total shares issued and outstanding (shares) | 5,001 | 5,001
Carrying value | $ 500 | $ 500
Liquidation preference per share (usd per share) | $ 100,000 |
Series F Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred stock, basis spread on variable rate | 3.131% |
Per annum dividend rate | 4.625% |
Total shares issued and outstanding (shares) | 10,000 | 10,000
Carrying value | $ 990 | $ 990
Liquidation preference per share (usd per share) | $ 100,000 |
Series G Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred stock, basis spread on variable rate | 4.358% |
Per annum dividend rate | 4.70% |
Total shares issued and outstanding (shares) | 0 | 10,000
Carrying value | $ 0 | $ 990
Liquidation preference per share (usd per share) | $ 100,000 |
Series H Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred stock, basis spread on variable rate | 3.352% |
Per annum dividend rate | 3.70% |
Total shares issued and outstanding (shares) | 5,825 | 5,825
Carrying value | $ 576 | $ 576
Liquidation preference per share (usd per share) | $ 100,000 |
Series I Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred stock, basis spread on variable rate | 2.63% |
Per annum dividend rate | 3.75% |
Total shares issued and outstanding (shares) | 13,000 | 13,000
Carrying value | $ 1,287 | $ 1,287
Liquidation preference per share (usd per share) | $ 100,000 |
Series J Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred stock, basis spread on variable rate | 2.297% |
Per annum dividend rate | 6.30% |
Total shares issued and outstanding (shares) | 5,000 | 0
Carrying value | $ 494 | $ 0
Liquidation preference per share (usd per share) | $ 100,000 |
Series K Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred stock, basis spread on variable rate | 2.161% |
Per annum dividend rate | 6.15% |
Total shares issued and outstanding (shares) | 5,000 | 0
Carrying value | $ 494 | $ 0
Liquidation preference per share (usd per share) | $ 100,000 |
Series L Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred stock, basis spread on variable rate | 2.271% |
Per annum dividend rate | 5.95% |
Total shares issued and outstanding (shares) | 5,000 | 0
Carrying value | $ 495 | $ 0
Liquidation preference per share (usd per share) | $ 100,000 |

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