Fair Value of Assets and Liabilities (Details 5) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 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	$ 4	$ 10	$ 4	$ 7
Total realized and unrealized gains (losses) included in net income, recurring Level 3 assets and liabilities	15	2	7	35
Gains (losses) for Level 3 liabilities still held at the balance sheet date, included in earnings	9	(12)	5	3
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	(2)
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)	4	4	6	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)	9	(10)	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)		(1)		4
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	13	(2)	9	10
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	9	(12)	5	(14)
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	3	3	1
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	(1)	(1)	(5)
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	4	5	7
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	(1)	0
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	0	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	1	0	0	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	6	1	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	1	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)