XML 67 R51.htm IDEA: XBRL DOCUMENT
v3.25.4

Variable Interest Entities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Variable Interest Entity, Not Primary Beneficiary, Disclosures [Abstract] |
Total assets and maximum loss exposure of VIE | The following table summarizes the total assets of the Bellemeade entities:
| December 31, 2025 |  | December 31, 2024 |  |
Bellemeade Entities (Issue Date) | Total VIE Assets |  |  |  |  |  |  |  | Coverage Remaining from Reinsurers (1) |  | Total VIE Assets |  |  |  |  |  |
2021-3 Ltd. (Sep-21) | $ | 21 |  |  |  |  |  |  |  |  | $ | 14 |  |  | $ | 363 |  |  |  |  |  |  |
2022-1 Ltd. (Jan-22) | 42 |  |  |  |  |  |  |  |  | 12 |  |  | 202 |  |  |  |  |  |  |
2022-2 Ltd. (Sep-22) | 43 |  |  |  |  |  |  |  |  | 91 |  |  | 180 |  |  |  |  |  |  |
2023-1 Ltd. (Oct-23) | 149 |  |  |  |  |  |  |  |  | 37 |  |  | 186 |  |  |  |  |  |  |
2024-1 Ltd. (Aug-24) | 130 |  |  |  |  |  |  |  |  | 33 |  |  | 163 |  |  |  |  |  |  |
2025-1 Ltd. (Nov-25) | 191 |  |  |  |  |  |  |  |  | 48 |  |  | — |  |  |  |  |  |  |
Total | $ | 576 |  |  |  |  |  |  |  |  | $ | 235 |  |  | $ | 1,094 |  |  |  |  |  |  |
(1) Coverage from a separate panel of reinsurers remaining at December 31, 2025.

X
- Definition Tabular disclosure of total VIE assets, together with the Company’s maximum exposure to loss associated with these VIEs. + References No definition available. + Details
Name: | acgl_VariableInterestEntityMaximumExposureToLossTableTextBlock
Namespace Prefix: | acgl_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_VariableInterestEntityNotPrimaryBeneficiaryDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration