Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Life Insurance and Annuities [Member] Retirement Plans and Individual Life Businesses [Member]	Dec. 31, 2013 Life Insurance and Annuities [Member] Retirement Plans and Individual Life Businesses [Member]
Investments:
Fixed maturities, available-for-sale, at fair value (amortized cost of $25,971 and $27,188) (includes variable interest entity assets, at fair value, of $8 and $12)	$ 27,529	$ 28,163
Fixed maturities, at fair value using the fair value option (includes variable interest entity assets, at fair value, of $344 and $338)	917	791
Equity securities, trading, at fair value (cost of $1,726 and $1,860)	12	12
Equity securities, available-for-sale, at fair value (cost of $399 and $443)	315	372
Mortgage loans (net of allowance for loan losses of $19 and $23)	3,315	3,470
Policy loans, at outstanding balance	1,425	1,416
Limited partnerships, and other alternative investments (includes variable entity assets of $6 and $7)	1,343	1,329
Other investments	176	270
Short-term investments (includes variable interest entity assets, at fair value, of $5, as of September 30, 2012)	2,086	1,952
Total investments	37,118	37,775
Cash	599	446
Premiums receivable and agents' balances	32	33
Reinsurance recoverable			19,671	19,794
Deferred policy acquisition costs and present value of future profits	648	689
Deferred income taxes, net	1,909	2,110
Other assets	892	994
Separate account assets	138,480	140,874
Total assets	199,349	202,715
Liabilities
Reserve for future policy benefits and unpaid losses and loss adjustment expenses	13,028	12,874
Other policyholder funds and benefits payable	36,063	36,856
Other liabilities (including variable interest entity liabilities of $443 and $477)	3,966	3,872
Separate account liabilities	138,480	140,874
Total liabilities	191,537	194,476
Commitments and Contingencies
Stockholders' Equity
Common stock—1,000 shares authorized, issued and outstanding, par value $5,690	6	6
Additional paid-in capital	6,164	6,959
Accumulated other comprehensive income, net of tax	886	574
Retained earnings (accumulated deficit)	756	700
Total stockholders' equity	7,812	8,239
Total liabilities and stockholders' equity	$ 199,349	$ 202,715