Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions		Sep. 30, 2015	Dec. 31, 2014
Fixed maturities, available-for-sale, at amortized cost		$ 23,754	$ 23,535
Available-for-sale Debt Securities, Amortized Cost Basis		23,587	23,260
Variable Interest Entity, Consolidated, Carrying Amount, Assets		53	157
Available-for-sale Equity Securities, Amortized Cost Basis		167	525
Available-for-sale Securities, Equity Securities		167	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		$ 50	$ 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]	2,933	3,124
Mortgage loans loss, net of allowances		(19)	(15)
Short-term Investments [Member]
Variable Interest Entity, Consolidated, Carrying Amount, Assets		0	15
Limited Partnerships and Other Alternative Investments [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity, Consolidated, Carrying Amount, Assets		2	3
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities		0	2
Cash [Member]
Variable Interest Entity, Consolidated, Carrying Amount, Assets		0	0
Variable Interest Entity, Primary Beneficiary [Member]
Available-for-sale Equity Securities, Amortized Cost Basis		$ 1	$ 0

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