Expected Loss to be Paid (Recovered) - Net Expected Loss to be Paid (Recovered) and Net Economic Loss Development (Benefit) by Accounting Model (Details) - USD ($) $ in Millions |
3 Months Ended | |||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Schedule of Expected Losses to be Paid [Line Items] | ||||
| Net Expected Loss to be Paid (Recovered) | $ 141 | $ 150 | $ 101 | $ 106 |
| Net economic loss development (benefit) | 44 | (15) | ||
| Insurance | ||||
| Schedule of Expected Losses to be Paid [Line Items] | ||||
| Net Expected Loss to be Paid (Recovered) | 129 | 88 | ||
| Net economic loss development (benefit) | 44 | 48 | ||
| FG VIEs' assets | ||||
| Schedule of Expected Losses to be Paid [Line Items] | ||||
| Net Expected Loss to be Paid (Recovered) | 12 | 13 | ||
| Net economic loss development (benefit) | 0 | 0 | ||
| Credit derivatives | ||||
| Schedule of Expected Losses to be Paid [Line Items] | ||||
| Net Expected Loss to be Paid (Recovered) | 0 | $ 0 | ||
| Net economic loss development (benefit) | $ 0 | $ (63) | ||