Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Fixed maturities, available-for-sale, at amortized cost	$ 23,308	$ 23,737
Available-for-sale Debt Securities, Amortized Cost Basis	23,219	23,559
Variable Interest Entity, Consolidated, Carrying Amount, Assets	0	54
Available-for-sale Equity Securities, Amortized Cost Basis	89	471
Available-for-sale Securities, Equity Securities	99	459
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities	$ 0	$ 12
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	$ 0	$ 49
Equity Securities [Member]
Available-for-sale Equity Securities, Amortized Cost Basis	0	293
Available-for-sale Securities, Equity Securities	0	281
Other Assets [Member]
Variable Interest Entity, Consolidated, Carrying Amount, Assets	0	0
Commercial Loan [Member]
Mortgage loans loss, net of allowances	(19)	(19)
Short-term Investments [Member]
Variable Interest Entity, Consolidated, Carrying Amount, Assets	0	2
Limited Partnerships and Other Alternative Investments [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity, Consolidated, Carrying Amount, Assets	0
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	$ 0	$ 1