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REINSURANCE (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Reinsurance Disclosures [Abstract] |  |  |
Written premiums, Direct | $ 5,115 | $ 5,031 | $ 4,602
Written premiums, Assumed | 13,117 | 11,606 | 9,350
Written premiums, Ceded | (2,418) | (1,907) | (1,608)
Net written premiums | 15,814 | 14,730 | 12,344
Premiums earned, Direct | 4,977 | 4,733 | 4,218
Premiums earned, Assumed | 12,458 | 10,518 | 9,082
Premiums earned, Ceded | (2,248) | (1,807) | (1,513)
Net premiums earned | 15,187 | 13,443 | 11,787
Incurred losses and LAE, Direct | 5,465 | 3,209 | 2,804
Incurred losses and LAE, Assumed | 7,464 | 5,870 | 6,285
Incurred losses and LAE, Ceded | (1,624) | (651) | (988)
Net incurred losses and LAE | $ 11,305 | $ 8,427 | $ 8,100

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