Fair Value of Assets and Liabilities (Details 4) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	$ (1)	$ (1)	$ 7	$ 4
Gains (losses) for Level 3 liabilities still held at the balance sheet date, included in earnings	19	9	24	12
Total realized and unrealized gains (losses) included in net income, recurring Level 3 assets and liabilities	30	13	37	48
Realized capital gains and losses
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)	(3)	(3)	(6)	(3)
Net investment income
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)	2	2	13	6
Interest credited to contractholder funds
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)	27	5	32	5
Life and annuity contract benefits
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)	(8)	4	(8)	8
Discontinued Operations [Member]
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)				(4)
Gain (Loss) on Investments [Member]
Gains (losses) included in net income for Level 3 assets and liabilities:
Total realized and unrealized gains (losses) included in net income, recurring Level 3 assets and liabilities	18	8	31	16
Derivatives embedded in life and annuity contracts
Gains (losses) included in net income for Level 3 assets and liabilities:
Gains (losses) for Level 3 liabilities still held at the balance sheet date, included in earnings	19	9	24	(5)
Liabilities held for sale
Gains (losses) included in net income for Level 3 assets and liabilities:
Gains (losses) for Level 3 liabilities still held at the balance sheet date, included in earnings	0	0	0	17
Fixed income securities
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	2	(1)	9	(2)
Municipal
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	0	(3)	(1)	(8)
Corporate
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	3	3	7	8
ABS
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	(1)	0	3	0
Residential mortgage-backed securities (“RMBS”)
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	0	0	0	(1)
Commercial mortgage-backed securities (“CMBS”)
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	0	(1)	0	(1)
Equity securities
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	(2)	0	(2)	0
Free-standing derivatives, net
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	(1)	0	0	6
Other assets
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	0	0	0	1
Assets held for sale
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	$ 0	$ 0	$ 0	$ (1)