XML 41 R52.htm IDEA: XBRL DOCUMENT v2.4.0.6
Investments (Credit Quality of Commercial Mortgage Loans) (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans $ 39,605 $ 40,472
% of Total 100.00% 100.00%
Estimated Fair Value 42,518 43,082
% of Total 100.00% 100.00%
Less than 65% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 30,936 31,291
% of Total 78.10% 77.30%
Estimated Fair Value 33,682 33,730
% of Total 79.20% 78.30%
65% to 75% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 5,667 5,882
% of Total 14.30% 14.60%
Estimated Fair Value 5,912 6,129
% of Total 13.90% 14.20%
76% to 80% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 1,556 1,385
% of Total 3.90% 3.40%
Estimated Fair Value 1,582 1,436
% of Total 3.70% 3.30%
Greater than 80% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 1,446 1,914
% of Total 3.70% 4.70%
Estimated Fair Value 1,342 1,787
% of Total 3.20% 4.20%
Greater than 1.20x [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 36,720 36,919
Greater than 1.20x [Member] | Less than 65% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 29,872 29,839
Greater than 1.20x [Member] | 65% to 75% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 4,864 5,057
Greater than 1.20x [Member] | 76% to 80% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 918 938
Greater than 1.20x [Member] | Greater than 80% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 1,066 1,085
1.00x - 1.20x [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 1,826 2,085
1.00x - 1.20x [Member] | Less than 65% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 701 730
1.00x - 1.20x [Member] | 65% to 75% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 645 672
1.00x - 1.20x [Member] | 76% to 80% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 297 131
1.00x - 1.20x [Member] | Greater than 80% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 183 552
Less than 1.00x [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 1,059 1,468
Less than 1.00x [Member] | Less than 65% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 363 722
Less than 1.00x [Member] | 65% to 75% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 158 153
Less than 1.00x [Member] | 76% to 80% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans 341 316
Less than 1.00x [Member] | Greater than 80% [Member]
   
Commercial Mortgage Loans - by Credit Quality Indicators with Estimated Fair Value:    
Commercial mortgage loans $ 197 $ 277