UNAUDITED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Investments:
Fixed maturities, at fair value (amortized cost: 2013: $26,188,523; 2012: $26,544,806)	$ 27,349,185	$ 27,846,920
Equity securities, at fair value (cost: 2013: $790,132; 2012: $617,486)	850,970	649,359
Short-term investments, at fair value (amortized cost: 2013: $260,021; 2012: $322,563)	258,269	322,703
Total investments available for sale	28,458,424	28,818,982
Fixed maturities, held to maturity at amortized cost (fair value: 2013: $3,086,378; 2012:$3,262,804)	2,661,821	2,814,447
Investments in affiliates	1,225,840	1,126,875
Other investments	1,142,188	1,219,879
Total investments	33,488,273	33,980,183
Cash and cash equivalents	2,473,287	2,618,378
Accrued investment income	316,718	342,778
Deferred acquisition costs	732,218	675,705
Ceded unearned premiums	646,269	587,909
Premiums receivable	3,156,137	2,568,861
Reinsurance balances receivable	99,337	58,428
Unpaid losses and loss expenses recoverable	3,341,855	3,382,101
Receivable from investments sold	39,659	16,002
Goodwill and other intangible assets	406,748	408,527
Deferred tax asset	172,446	166,142
Other assets	649,316	582,765
Total assets	45,522,263	45,387,779
Liabilities:
Unpaid losses and loss expenses	20,177,581	20,484,121
Deposit liabilities	1,527,323	1,551,398
Future policy benefit reserves	4,550,916	4,812,045
Unearned premiums	4,342,664	3,755,920
Notes payable and debt	1,672,206	1,672,778
Reinsurance balances payable	267,472	143,112
Payable for investments purchased	145,854	102,112
Deferred tax liability	110,984	141,803
Other liabilities	895,417	868,093
Total liabilities	33,690,417	33,531,382
Commitments and Contingencies
Shareholders' Equity:
Ordinary shares, 999,990,000 authorized, par value $0.01; issued and outstanding: (2013: 291,831,433; 2012: 298,681,573)	2,918	2,987
Additional paid in capital	8,371,527	8,584,753
Accumulated other comprehensive income	1,405,110	1,520,011
Retained earnings (deficit)	707,791	402,321
Shareholders' equity attributable to XL Group plc	10,487,346	10,510,072
Non-controlling interest in equity of consolidated subsidiaries	1,344,500	1,346,325
Total shareholders' equity	11,831,846	11,856,397
Total liabilities and shareholders' equity	$ 45,522,263	$ 45,387,779