Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - Fair Value Hierarchy [Domain] - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Fixed maturities, available-for-sale, at amortized cost		$ 24,127	$ 23,535
Available-for-sale Debt Securities, Amortized Cost Basis		23,960	23,260
Variable Interest Entity, Consolidated, Carrying Amount, Assets		55	157
Available-for-sale Equity Securities, Amortized Cost Basis		167	525
Available-for-sale Securities, Equity Securities		178	514
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities		$ 11	$ 22
Common stock, par value		$ 5,690	$ 5,690
Common stock, shares authorized		1,000	1,000
Common stock, shares issued		1,000	1,000
Common stock: shares outstanding		1,000	1,000
Fixed Maturities [Member]
Variable Interest Entity, Consolidated, Carrying Amount, Assets		$ 49	$ 139
Equity Securities [Member]
Available-for-sale Equity Securities, Amortized Cost Basis		0	250
Available-for-sale Securities, Equity Securities		0	248
Commercial Loan [Member]
Fixed maturities, available-for-sale, at amortized cost	[1]	3,018	3,124
Mortgage loans loss, net of allowances		19	15
Short-term Investments [Member]
Variable Interest Entity, Consolidated, Carrying Amount, Assets		4	15
Limited Partnerships and Other Alternative Investments [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Mortgage loans loss, net of allowances		2	3
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities		1	2
Cash [Member]
Variable Interest Entity, Consolidated, Carrying Amount, Assets		$ 0	$ 0

[1] Amortized cost represents carrying value prior to valuation allowances, if any.