XML 46 R59.htm IDEA: XBRL DOCUMENT v2.4.1.9
COMMITMENTS AND CONTINGENCIES (DETAILS) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Minimum reinsurance premiums [Member]  
Unrecorded Unconditional Purchase Obligation [Line Items]  
Outstanding purchase commitment $ 72us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount
/ us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis
= axs_MinimumreinsurancepremiumsMember
Outstanding purchase commitment, due in 2015 64us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary
/ us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis
= axs_MinimumreinsurancepremiumsMember
Outstanding purchase commitment, due in 2016 8us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary
/ us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis
= axs_MinimumreinsurancepremiumsMember
Commercial mortgage loans [Member]  
Unrecorded Unconditional Purchase Obligation [Line Items]  
Outstanding purchase commitment $ 50us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount
/ us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis
= us-gaap_MortgageLoansOnRealEstateMember