Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Available-for-sale securities, at fair value:
Fixed maturity securities (amortized cost: 2015 - $80,230; 2014 - $78,609)	$ 88,813	$ 86,240
Variable interest entities' fixed maturity securities (amortized cost: 2015 - $588; 2014 - $587)	598	598
Equity securities (cost: 2015 - $192; 2014 - $216)	210	231
Trading securities	2,077	2,065
Mortgage loans on real estate	7,654	7,574
Real estate	19	20
Policy loans	2,664	2,670
Derivative investments	2,095	1,860
Other investments	1,885	1,709
Total investments	106,015	102,967
Cash and invested cash	3,487	3,919
Deferred acquisition costs and value of business acquired	8,156	8,207
Premiums and fees receivable	452	473
Accrued investment income	1,129	1,049
Reinsurance recoverables	5,598	5,730
Funds withheld reinsurance assets	646	649
Goodwill	2,273	2,273
Other assets	2,901	2,845
Separate account assets	127,828	125,265
Total assets	258,485	253,377
Liabilities
Future contract benefits	20,468	20,057
Other contract holder funds	75,663	75,512
Short-term debt	250	250
Long-term debt	5,627	5,270
Reinsurance related embedded derivatives	165	150
Funds withheld reinsurance liabilities	717	764
Deferred gain on business sold through reinsurance	153	171
Payables for collateral on investments	5,046	4,409
Variable interest entities' liabilities	5	13
Other liabilities	6,340	5,776
Separate account liabilities	127,828	125,265
Total liabilities	242,262	237,637
Contingencies and Commitments (See Note 8)
Stockholders Equity
Preferred stock - 10,000,000 shares authorized	0	0
Common stock - 800,000,000 shares authorized; 252,928,502 and 256,551,440 shares issued and outstanding as of March 31, 2015, and December 31, 2014, respectively	6,493	6,622
Retained earnings	6,077	6,022
Accumulated other comprehensive income (loss)	3,653	3,096
Total stockholders' equity	16,223	15,740
Total liabilities and stockholders' equity	$ 258,485	$ 253,377