CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (PARENTHETICAL) - Related Party - Monarch Point Re - Loan With Monarch Point Re $ in Millions	9 Months Ended
Sep. 30, 2023 USD ($)
Non-cash repayment of advance and settlement of reinsurance balances	$ 29
Interest received on advance	$ 7

Noncash Activity, Repayment Of Advance To Affiliate And Settlement Of Reinsurance Payable

No definition available.

Name:	axs_NoncashActivityRepaymentOfAdvanceToAffiliateAndSettlementOfReinsurancePayable
Namespace Prefix:	axs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration