January 1, 2013 Balance  | Net Realized and Unrealized Gains  | Net Purchases, Issuances and Settlements  | Net Transfers Into/(Out of) Level 3  | December 31, 2013 Balance  | |||||||||||||||
Fixed income securities:  | |||||||||||||||||||
Corporate  | $3  | $16  | $5  | $24  | |||||||||||||||
Mortgage backed and asset backed  | 561  | (11  | )  | (1  | )  | 549  | |||||||||||||
Other (1)  | 245  | $37  | (27  | )  | 255  | ||||||||||||||
Equity securities:  | |||||||||||||||||||
Non-U.S. common and preferred stock  | 1  | 1  | |||||||||||||||||
Private equity (1)  | 2,671  | 536  | (249  | )  | 2,958  | ||||||||||||||
Real estate and real assets:  | |||||||||||||||||||
Real estate  | 2,128  | 232  | 64  | 2,424  | |||||||||||||||
Real assets  | 664  | 78  | (36  | )  | 706  | ||||||||||||||
Hedge funds  | 1,473  | 183  | (627  | )  | 80  | 1,109  | |||||||||||||
Total  | $7,745  | $1,066  | ($870  | )  | $85  | $8,026  | |||||||||||||
(1)  | Certain private funds with a fixed income strategy were reclassified from private equity to other fixed income on January 1, 2013.  | 
January 1, 2012 Balance  | Net Realized and Unrealized Gains/(Losses)  | Net Purchases, Issuances and Settlements  | Net Transfers Into/(Out of) Level 3  | December 31, 2012 Balance  | |||||||||||||||
Fixed income securities:  | |||||||||||||||||||
Corporate  | $11  | ($12  | )  | $11  | ($7  | )  | $3  | ||||||||||||
Mortgage backed and asset backed  | 11  | 41  | 151  | 358  | 561  | ||||||||||||||
Municipal  | 3  | (3  | )  | ||||||||||||||||
Private equity  | 2,859  | 208  | (151  | )  | 2,916  | ||||||||||||||
Real estate and real assets:  | |||||||||||||||||||
Real estate  | 1,820  | 133  | 175  | 2,128  | |||||||||||||||
Real assets  | 547  | 45  | 72  | 664  | |||||||||||||||
Global strategies  | 75  | (75  | )  | ||||||||||||||||
Hedge funds  | 2,451  | 104  | 52  | (1,134  | )  | 1,473  | |||||||||||||
Total  | $7,777  | $519  | $310  | ($861  | )  | $7,745  | |||||||||||||