CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Revenues:
Net premiums earned	$ 1,453,326		$ 1,365,327		$ 4,213,048		$ 4,036,573
Net investment income	290,106		296,730		866,874		907,648
Realized investment gains (losses):
Net realized gains (losses) on investments sold	4,461		(30,793)		(6,899)		(30,751)
Other-than-temporary impairments on investments	(67,513)		(27,377)		(141,321)		(114,627)
Other-than-temporary impairments on investments transferred to (from) other comprehensive income	698		(10,585)		9,885		(20,939)
Total net realized gains (losses) on investments	(62,354)		(68,755)		(138,335)		(166,317)
Net realized and unrealized gains (losses) on derivative instruments	(26,916)		12,473		(34,299)		(27,903)
Income (loss) from investment fund affiliates	(7,123)		3,105		30,277		30,367
Fee income and other	10,980		11,262		30,494		29,215
Total revenues	1,658,019		1,620,142		4,968,059		4,809,583
Expenses:
Net losses and loss expenses incurred	988,059		811,980		3,020,508		2,451,345
Claims and policy benefits	139,549		144,358		410,196		391,476
Acquisition costs	207,553		198,173		611,142		579,870
Operating expenses	246,930		236,193		773,555		710,168
Exchange (gains) losses	(39,425)		44,540		(38,409)		(8,819)
Interest expense	48,911		58,609		158,157		156,828
Loss on termination of guarantee							23,500
Amortization of intangible assets	885		465		1,394		1,394
Total expenses	1,592,462		1,494,318		4,936,543		4,305,762
Income (loss) before income tax and income (loss) from operating affiliates	65,557		125,824		31,516		503,821
Provision (benefit) for income tax	24,718		29,810		16,747		102,622
Income (loss) from operating affiliates	35,552		14,035		95,439		46,654
Net income (loss)	76,391		110,049		110,208		447,853
Non-controlling interests	(33,993)		(32,506)		(69,431)		(32,425)
Net income (loss) attributable to XL Group plc	42,398	[1]	77,543	[1]	40,777	[1]	415,428	[1]
Preference share dividends		[1]		[1]		[1]	(34,694)	[1]
Gain on redemption of Redeemable Series C preference ordinary shares							16,616
Net income (loss) attributable to ordinary shareholders	$ 42,398		$ 77,543		$ 40,777		$ 397,350
Weighted average ordinary shares and ordinary share equivalents outstanding – basic (in Shares)	311,714		338,724		310,793		340,927
Weighted average ordinary shares and ordinary share equivalents outstanding – diluted (in Shares)	313,848		339,819		314,842		341,764
Earnings per ordinary share and ordinary share equivalent – basic (in Dollars per share)	$ 0.14		$ 0.23		$ 0.13		$ 1.17
Earnings per ordinary share and ordinary share equivalent – diluted (in Dollars per share)	$ 0.14		$ 0.23		$ 0.13		$ 1.16

[1] During the first quarter of 2011, the Redeemable Series C preference ordinary shares were reclassified as Non-controlling interest - Redeemable Series C preference ordinary shares and Series E preference ordinary shares were reclassified as Non-controlling interest in equity of consolidated subsidiaries on the Company's consolidated balance sheet as a result of changes in ownership structure arising as part of the Company's redomestication of the ultimate parent holding company to Ireland as of July 1, 2010. Accordingly, preference share dividends declared are recorded as Non-controlling interests rather than as Preference share dividends within the consolidated statements of income from July 1, 2010 onwards. See Note 1, "Basis of Preparation and Consolidation" for additional details. During the third quarter of 2011, all outstanding Redeemable Series C preference ordinary shares were repurchased and canceled.