Related party transaction	12 Months Ended
Dec. 31, 2016
Related Party Transactions [Abstract]
Related party transactions	Related party transactions Starr Indemnity & Liability Company and its affiliates (collectively, Starr) We have a number of agency and reinsurance agreements with Starr, the Chairman of which is related to a member of our senior management team. A number of these agreements pre-dated our acquisition of Chubb Corp; however, in connection with our acquisition of Chubb Corp on January 14, 2016, we obtained Chubb Corp’s pre-existing business with Starr, which included agency agreements and agreements in which Chubb Corp was a reinsurer to Starr. Our Board has reviewed and approved our arrangements with Starr. We have agency, claims services and underwriting services agreements with various Starr subsidiaries. Under the agency agreements, we secure the ability to sell our insurance policies through Starr as one of our non-exclusive agents for writing policies, contracts, binders, or agreements of insurance or reinsurance. Under the claims services agreements, Starr adjusts the claims under policies and arranges for third party treaty and facultative agreements covering such policies. Under the underwriting services agreements, Starr underwrites insurance policies on our behalf and we agree to reinsure such policies to Starr under one or more quota reinsurance agreements. For the years ended December 31, 2016, 2015, and 2014 we generated $658 million, $305 million, and $314 million, respectively, in gross premiums written through these agreements. In addition, we ceded $208 million, $78 million, and $84 million to Starr as part of our reinsurance program on the underlying business for the years ended December 31, 2016, 2015, and 2014, respectively. We paid commissions to Starr of $145 million, $60 million, and $63 million and received commissions from Starr of $56 million, $19 million, and $20 million for the years ended December 31, 2016, 2015, and 2014, respectively, under these agreements. We incurred net Losses and loss expenses of $313 million, $137 million, and $91 million, for the years ended December 31, 2016, 2015, and 2014, respectively, under these agreements. Certain agency agreements also contain a profit-sharing arrangement based on loss ratios, triggered if Starr underwrites a minimum of $20 million of annual program business net written premiums on our behalf. No profit share commission has been payable yet under this arrangement. Another agency agreement contains a profit-sharing arrangement based on the earned premiums for the business underwritten by Starr (excluding workers’ compensation) and the reinsurance recoveries associated with excess of loss reinsurance agreements placed by Starr for the business underwritten. No profit share commission under this arrangement has been payable yet. Reinsurance recoverable on losses and loss expenses due from Starr was $412 million and $112 million as of December 31, 2016 and 2015, respectively, and the amount of ceded reinsurance premium payable included in Insurance and reinsurance balances payable in the consolidated balance sheet was $72 million and $18 million, respectively. The Chubb Charitable Foundation – Bermuda The Chubb Charitable Foundation is an unconsolidated not-for-profit organization whose primary purpose is to fund charitable causes in Bermuda. The Trustees are principally Chubb management. Chubb maintains a non-interest bearing demand note receivable from the Chubb Charitable Foundation – Bermuda (Borrower), the balance of which was $23 million and $24 million at December 31, 2016 and 2015, respectively. The receivable is included in Other assets in the consolidated balance sheets. The Borrower has used the related proceeds to finance investments in Bermuda real estate, some of which have been rented to Chubb employees at rates established by independent, professional real estate appraisers. The Borrower uses income from the investments to both repay the note and to fund charitable activities. Accordingly, we report the demand note at the lower of its principal value or the fair value of assets held by the Borrower to repay the loan, including the real estate properties. ABR Re ABR Re is a variable interest entity of which we own 11.3 percent; however, Chubb is not the primary beneficiary and does not consolidate ABR Re because Chubb does not have the power to control and direct ABR Re’s most significant activities, including investing and underwriting. Our minority ownership interest is accounted for under the equity method of accounting. Chubb cedes premiums to ABR Re and recognizes the associated commissions. Refer to Note 3 e) for additional information on the results of operations related to ABR Re.

Related party transactions

Starr Indemnity & Liability Company and its affiliates (collectively, Starr)

We have a number of agency and reinsurance agreements with Starr, the Chairman of which is related to a member of our senior management team. A number of these agreements pre-dated our acquisition of Chubb Corp; however, in connection with our acquisition of Chubb Corp on January 14, 2016, we obtained Chubb Corp’s pre-existing business with Starr, which included agency agreements and agreements in which Chubb Corp was a reinsurer to Starr. Our Board has reviewed and approved our arrangements with Starr.

We have agency, claims services and underwriting services agreements with various Starr subsidiaries. Under the agency agreements, we secure the ability to sell our insurance policies through Starr as one of our non-exclusive agents for writing policies, contracts, binders, or agreements of insurance or reinsurance. Under the claims services agreements, Starr adjusts the claims under policies and arranges for third party treaty and facultative agreements covering such policies. Under the underwriting services agreements, Starr underwrites insurance policies on our behalf and we agree to reinsure such policies to Starr under one or more quota reinsurance agreements. For the years ended December 31, 2016, 2015, and 2014 we generated $658 million, $305 million, and $314 million, respectively, in gross premiums written through these agreements. In addition, we ceded $208 million, $78 million, and $84 million to Starr as part of our reinsurance program on the underlying business for the years ended December 31, 2016, 2015, and 2014, respectively. We paid commissions to Starr of $145 million, $60 million, and $63 million and received commissions from Starr of $56 million, $19 million, and $20 million for the years ended December 31, 2016, 2015, and 2014, respectively, under these agreements. We incurred net Losses and loss expenses of $313 million, $137 million, and $91 million, for the years ended December 31, 2016, 2015, and 2014, respectively, under these agreements.

Certain agency agreements also contain a profit-sharing arrangement based on loss ratios, triggered if Starr underwrites a minimum of $20 million of annual program business net written premiums on our behalf. No profit share commission has been payable yet under this arrangement. Another agency agreement contains a profit-sharing arrangement based on the earned premiums for the business underwritten by Starr (excluding workers’ compensation) and the reinsurance recoveries associated with excess of loss reinsurance agreements placed by Starr for the business underwritten. No profit share commission under this arrangement has been payable yet.

Reinsurance recoverable on losses and loss expenses due from Starr was $412 million and $112 million as of December 31, 2016 and 2015, respectively, and the amount of ceded reinsurance premium payable included in Insurance and reinsurance balances payable in the consolidated balance sheet was $72 million and $18 million, respectively.

The Chubb Charitable Foundation – Bermuda

The Chubb Charitable Foundation is an unconsolidated not-for-profit organization whose primary purpose is to fund charitable causes in Bermuda. The Trustees are principally Chubb management. Chubb maintains a non-interest bearing demand note receivable from the Chubb Charitable Foundation – Bermuda (Borrower), the balance of which was $23 million and $24 million at December 31, 2016 and 2015, respectively. The receivable is included in Other assets in the consolidated balance sheets. The Borrower has used the related proceeds to finance investments in Bermuda real estate, some of which have been rented to Chubb employees at rates established by independent, professional real estate appraisers. The Borrower uses income from the investments to both repay the note and to fund charitable activities. Accordingly, we report the demand note at the lower of its principal value or the fair value of assets held by the Borrower to repay the loan, including the real estate properties.

ABR Re

ABR Re is a variable interest entity of which we own 11.3 percent; however, Chubb is not the primary beneficiary and does not consolidate ABR Re because Chubb does not have the power to control and direct ABR Re’s most significant activities, including investing and underwriting. Our minority ownership interest is accounted for under the equity method of accounting. Chubb cedes premiums to ABR Re and recognizes the associated commissions. Refer to Note 3 e) for additional information on the results of operations related to ABR Re.