UNAUDITED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Investments:
Fixed maturities, at fair value (amortized cost: 2017 - $30,012,097; 2016 - $29,587,656)		$ 30,810,724	$ 30,256,602
Equity securities, at fair value (cost: 2017 - $1,094,494; 2016 - $996,610)		1,174,500	1,037,331
Short-term investments, at fair value (amortized cost: 2017 - $617,866; 2016 - $626,142)		617,894	625,193
Total investments available for sale		32,603,118	31,919,126
Fixed maturities, at fair value (amortized cost: 2017 - $1,724,250; 2016 - $1,548,178)		1,772,877	1,617,014
Short-term investments, at fair value (amortized cost: 2017 - $0; 2016 - $9,536)		0	9,563
Total investments, trading		1,772,877	1,626,577
Investments in affiliates		2,127,115	2,177,645
Other investments		1,126,741	1,164,564
Total investments		37,629,851	36,887,912
Cash and cash equivalents		3,133,822	3,426,988
Restricted cash		181,230	153,504
Accrued investment income		270,730	284,366
Deferred acquisition costs and value of business acquired		1,143,671	946,721
Ceded unearned premiums		2,566,652	1,687,864
Premiums receivable		6,973,206	5,522,976
Reinsurance balances receivable		755,511	577,479
Unpaid losses and loss expenses recoverable		5,858,369	5,491,297
Receivable from investments sold		442,339	128,411
Goodwill and other intangible assets		2,219,390	2,203,653
Deferred tax asset		293,219	310,542
Other assets		914,260	812,389
Total assets		62,382,250	58,434,102
Liabilities:
Unpaid losses and loss expenses		26,822,346	25,939,571
Deposit liabilities		1,123,628	1,116,233
Future policy benefit reserves		3,591,573	3,506,047
Funds withheld on GreyCastle life retrocession arrangements (net of future policy benefit reserves recoverable: 2017 - $3,170,975; 2016 - $3,072,615)		918,304	998,968
Unearned premiums		8,848,374	7,293,028
Notes payable and debt	[1]	3,207,339	2,647,677
Reinsurance balances payable		3,428,302	2,451,717
Payable for investments purchased		268,771	226,009
Deferred tax liability		97,879	77,271
Other liabilities		973,327	1,216,902
Total liabilities		49,279,843	45,473,423
Commitments and Contingencies
Shareholders' Equity:
Common shares, 999,990,000 authorized, par value $0.01; issued and outstanding (2017 - 258,611,313; 2016 - 266,889,127)		2,586	2,669
Additional paid in capital		7,790,913	8,068,503
Accumulated other comprehensive income		921,165	715,546
Retained earnings		2,365,888	2,151,794
Shareholders' equity attributable to XL Group Ltd		11,080,552	10,938,512
Non-controlling interest in equity of consolidated subsidiaries		2,021,855	2,022,167
Total shareholders' equity		13,102,407	12,960,679
Total liabilities and shareholders' equity		$ 62,382,250	$ 58,434,102

[1] "In Use/Outstanding" data represent June 30, 2017 and December 31, 2016 accreted values.