Schedule IV - Schedule of Reinsurance Level 4 (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Life Insurance in Force, Net [Abstract]
Direct Premiums, Life Insurance in Force	$ 306,472	$ 327,772	$ 318,652
Ceded Premiums Earned	234,306	255,185	241,684
Assumed Premiums, Life Insurance in Force	713	797	815
Premiums, Net, Life Insurance in Force	$ 72,879	$ 73,384	$ 77,783
Life Insurance in Force Premiums, Percentage Assumed to Net	1.00%	1.00%	1.00%
Insurance Services Revenue [Abstract]
Direct Premiums Earned	$ 2,877	$ 3,228	$ 3,502
Ceded Premiums Earned	1,801	2,060	1,869
Assumed Premiums Earned	113	74	13
Premiums Earned, Net, Life	1,189	1,242	1,646
Premiums Earned, Net	$ 92	$ 32	$ 184
Premiums, Percentage Assumed to Net	10.00%	6.00%	1.00%
Accident and Health Insurance Product Line [Member]
Insurance Services Revenue [Abstract]
Direct Premiums Earned	$ 190	$ 249	$ 264
Ceded Premiums Earned	128	369	155
Assumed Premiums Earned	0	0	0
Premiums Earned, Net	$ 62	$ 120	$ 109
Premiums, Percentage Assumed to Net	0.00%	0.00%	0.00%
Life and Annuity Insurance Product Line [Member]
Insurance Services Revenue [Abstract]
Direct Premiums Earned	$ 2,687	$ 2,979	$ 3,238
Ceded Premiums Earned	1,673	1,691	1,714
Assumed Premiums Earned	113	74	13
Premiums Earned, Net	$ 1,127	$ 1,362	$ 1,537
Premiums, Percentage Assumed to Net	10.00%	5.00%	1.00%

Amount of earned premiums assumed from other entities.

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