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v3.25.2

Commitments and Contingencies - Narrative (Details) - USD ($) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024 | May 04, 2023
Loss Contingencies [Line Items] |  |  |  |  |  |
Additions (reductions) in deposit balance |  |  | $ 0 |  |  |
IDA balance ceiling amount above fixed-rate obligation |  |  |  |  |  | $ 30,000,000,000
IDA balance floor amount |  |  |  |  |  | 60,000,000,000
IDA balance ceiling amount |  |  |  |  |  | $ 90,000,000,000
Ending IDA balance | $ 82,200,000,000 |  | 82,200,000,000 |  | $ 87,600,000,000 |
Fixed-rate obligation IDA balance | 63,700,000,000 |  | 63,700,000,000 |  | 66,600,000,000 |
Floating-rate obligation IDA balance | 18,500,000,000 |  | 18,500,000,000 |  | $ 21,000,000,000.0 |
Guarantees |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Liability for guarantees | 0 |  | 0 |  |  |
Residential real estate | First Mortgages |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Purchased during period | 1,700,000,000 | $ 851,000,000 | 2,700,000,000 | $ 1,500,000,000 |  |
Residential real estate | HELOCs |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Purchased during period | $ 79,000,000 | $ 47,000,000 | $ 129,000,000 | $ 83,000,000 |  |

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