SCHEDULE I CONSOLIDATED SUMMARY OF INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2011

Summary of Investment Holdings, Schedule of Investments [Text Block]

Type of Investment (U.S. dollars in thousands)	Cost or Amortized Cost (1)		Fair Value		Amount Presented in the Balance Sheet
Fixed Maturities:
Bonds and notes:
U.S. Government and Government-Related/Supported	$	1,864,354	$	1,990,983	$	1,990,983
Corporate		10,212,083		10,462,515		10,462,515
Residential mortgage-backed securities – Agency		5,189,473		5,379,406		5,379,406
Residential mortgage-backed securities – Non-Agency		851,557		641,815		641,815
Commercial mortgage-backed securities		927,684		974,835		974,835
Collateralized debt obligations		843,553		658,602		658,602
Other asset-backed securities – Government		995,903		986,356		986,356
U.S. States and political subdivisions of the States		1,698,573		1,797,378		1,797,378
Non-U.S. Sovereign Government, Supranational and Government-Related		3,188,535		3,298,135		3,298,135
Total fixed maturities (1)	$	25,771,715	$	26,190,025	$	26,190,025
Equity Securities	$	480,685	$	468,197	$	468,197
Short-term investments (1)	$	359,378	$	359,063	$	359,063
Fixed maturities, held to maturity (1)	$	2,668,978	$	2,895,688	$	2,668,978
Other investments	$	849,511	$	958,681	$	985,262
Total investments other than investments in related parties	$	30,130,267	$	30,871,654	$	30,671,525

Type of Investment (U.S. dollars in thousands)	Cost or Amortized Cost (1)		Fair Value		Amount Presented in the Balance Sheet
Fixed Maturities:
Bonds and notes:
U.S. Government and Government-Related/Supported	$	2,499,079	$	2,565,444	$	2,565,444
Corporate		10,962,804		10,968,971		10,968,971
Residential mortgage-backed securities – Agency		5,059,249		5,203,711		5,203,711
Residential mortgage-backed securities – Non-Agency		1,257,474		1,021,823		1,021,823
Commercial mortgage-backed securities		1,135,075		1,172,507		1,172,507
Collateralized debt obligations		920,501		734,138		734,138
Other asset-backed securities Government		979,539		960,532		960,532
U.S. States and political subdivisions of the States		1,379,150		1,360,456		1,360,456
Non-U.S. Sovereign Government, Supranational and Government-Related		3,129,971		3,154,523		3,154,523
Total fixed maturities (1)	$	27,322,842	$	27,142,105	$	27,142,105
Equity Securities	$	56,737	$	84,767	$	84,767
Short-term investments (1)	$	450,491	$	450,681	$	450,681
Fixed maturities, held to maturity (1)	$	2,728,335	$	2,742,626	$	2,728,335
Other investments	$	789,917	$	883,409	$	893,570
Total investments other than investments in related parties	$	31,348,322	$	31,303,588	$	31,299,458